Perhaps you should try some spelling variations:
thanh chau » thanh cha, thanh cham, thanh chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hoc chieu » hoc thieu, ho chieu, hoc hien
dung cong » dung trong
trang va » tran van, hang va
cong tac » cong ty
phan cau » phan dau, phan cac, phan tu
bang va » hang va, ban va, dang van

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 xanh - anh ((bang va) or (trang va)) dung cong tac ((thanh chau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - anh ((bang va) OR (trang va)) dung cong tac ((thanh chau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - anh ((bang va) or (trang va)) dung cong tac ((thanh chau) or (phan cau))*.