Perhaps you should try some spelling variations:
thanh tung » thanh cong
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
hanh dong » anh dong, ha dong
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
phan dau » hang dau

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 dong) or (thanh tung)) cua nhung cong tan ((phan dau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((hanh dong) OR (thanh tung)) cua nhung cong tan ((phan dau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((hanh dong) or (thanh tung)) cua nhung cong tan ((phan dau) or (phan tu))*.