Perhaps you should try some spelling variations:
chuong tinh » khuong tinh, thuong tinh, phuong trinh
trinh cua » trinh luat, trinh quan, trinh luan
cuoc viet » nuoc viet, cuoi viet, quoc viet
con nguoi » cua nguoi, cho nguoi
trinh do » trinh ky
cua doan » cua doanh, cua toan, chuan doan
tinh cua » sinh cua, tinh chat, tranh cua
co nguoi » cho nguoi, o nguoi, ca nguoi
mot cuoc » soat cuoc, mot goc, doc cuoc
cac cap » cao cap, cac cam, cac cau
cay mot » cay mo, cay moc, cay ot
cac cay » ca cay, cac cam, cac cau
cac nam » bac nam, cac cam, cac ham
cua dan » cua dang, cua ban, ca dan
do ban » doi ban, co ban, do ben
dan va » dan ca, han va, doan van
co doi » cho doi, co dot, co hoi
co dai » co dan, do dai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( cong trinh do ban va cac cay mot cuoc viet nam ) or ((( chuong trinh cua dan va cac cap ((co nguoi) or (con nguoi)) viet nam ) or ( chuong tinh cua doan va cac nam ((co doi) OR (co dai)) viet nam ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( cong trinh do ban va cac cay mot cuoc viet nam ) OR ((( chuong trinh cua dan va cac cap ((co nguoi) OR (con nguoi)) viet nam ) OR ( chuong tinh cua doan va cac nam ((co doi) OR (co dai)) viet nam )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( cong trinh do ban va cac cay mot cuoc viet nam ) or ((( chuong trinh cua dan va cac cap ((co nguoi) or (con nguoi)) viet nam ) or ( chuong tinh cua doan va cac nam ((co doi) OR (co dai)) viet nam ))))".
• Adding a wildcard symbol may retrieve word variants: (( cong trinh do ban va cac cay mot cuoc viet nam ) or ((( chuong trinh cua dan va cac cap ((co nguoi) or (con nguoi)) viet nam ) or ( chuong tinh cua doan va cac nam ((co doi) OR (co dai)) viet nam ))))*.