Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trung » hanh trang, manh trung, danh trung
cong cong » cong dong, trong cong, dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sang - ((hanh trung) or (thanh trung)) cua cong cong tac ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh trung) OR (thanh trung)) cua cong cong tac ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh trung) or (thanh trung)) cua cong cong tac ((toan cao) or (toan ban))*.