Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
tuong cua » truong cua, huong cua, thong cua
nang cong » nang song, bang cong, hang cong
dang cong » dung cong
tac thanh » bac thanh, cac thanh, tcc thanh
thanh cap » thanh lap, hanh cap, than cap

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

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