Perhaps you should try some spelling variations:
nhung trinh » nhung tinh, chuong trinh, phuong trinh
trinh han » trinh quan
boi duong » hai duong, doi tuong, con duong
thi quan » thi xuan, tri quan, thi luan
dung hoc » dong hoc, dung thuoc, trung hoc
noi dung » hoc dung
hoc mot » hoc moi
quan va » quan vi, quan ha, luan va
han va » hang va, hanh va, nhan va
ho so » co so
ho mo » ho mon, hoc mo, ho mt
phung » phuong, chung, phong

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( phung thi quan va. boi duong ((ho mo) OR (ho so)) ) or ( nhung trinh han va. noi dung hoc mot ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( phung thi quan va. boi duong ((ho mo) OR (ho so)) ) OR ( nhung trinh han va. noi dung hoc mot )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( phung thi quan va. boi duong ((ho mo) OR (ho so)) ) or ( nhung trinh han va. noi dung hoc mot ))".
• Adding a wildcard symbol may retrieve word variants: (( phung thi quan va. boi duong ((ho mo) OR (ho so)) ) or ( nhung trinh han va. noi dung hoc mot ))*.