Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
dong thanh » truong thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
trang va » tran van, hang va
trinh va » trinh van, trinh vat, trinh ve
dong anh » hong anh, hoang anh, dong kinh
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - hanh ((trang va) or (trinh va)) nhung ((dong anh) or (dong thanh)) tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - hanh ((trang va) OR (trinh va)) nhung ((dong anh) OR (dong thanh)) tuan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - hanh ((trang va) or (trinh va)) nhung ((dong anh) or (dong thanh)) tuan ban*.