Perhaps you should try some spelling variations:
chuong tranh » huong tran, phuong trinh, phuong tran
trinh cua » tinh cua, trinh luat, trinh quan
tranh cua » doanh cua, manh cua
cuoc viet » nuoc viet, cuoi viet, quoc viet
trinh do » trinh ky
cua doan » cua doanh, cua toan, chuan doan
co nguoi » cho nguoi, con nguoi, o nguoi
hoi viet » hai viet, oi viet, thai viet
mot cuoc » soat cuoc, mot goc, doc cuoc
cua dan » cua dang, cua ban, ca dan
cac cap » cao cap, cac cam, cac cau
cay mot » cay mo, cay moc, cay ot
cac cay » ca cay, cac cam, cac cau
nam cao » nam sao, nam giao
dan va » dan ca, han va, doan van
do ban » doi ban, co ban, do ben
nam co » nam bo, nam so, nam lo
cap co » cap cho, tap co, cap do

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 viet nam ) or ( chuong tranh cua doan va cac ((nam co) OR (nam cao)) hoi 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 viet nam ) OR ( chuong tranh cua doan va cac ((nam co) OR (nam cao)) hoi 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 viet nam ) or ( chuong tranh cua doan va cac ((nam co) OR (nam cao)) hoi 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 viet nam ) or ( chuong tranh cua doan va cac ((nam co) OR (nam cao)) hoi viet nam ))))*.