Perhaps you should try some spelling variations:
thanh nhung » hanh nhung, tranh nhung, thanh chuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
manh trung » manh tung, thanh trung, manh hung
thanh hung » thanh huong, thanh tung, thanh trung
cong tac » cong ty
tac nang » tac vang, tai nang, tap nang

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 sach - manh trung ((thanh nhung) OR (thanh hung)) cong tac nang cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - manh trung ((thanh nhung) OR (thanh hung)) cong tac nang cao".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - manh trung ((thanh nhung) OR (thanh hung)) cong tac nang cao*.