Perhaps you should try some spelling variations:
thanh trung » thanh tung
tuyen duong » tuyen dung
chieu sach » chinh sach, chiet tach, chieu xanh
chieu sang » chieu xanh, hieu lang, nhieu tang
van duong » van dong, van dung, van phong
cong san » cong tac
san sang » van sang, nang sang, san chang
sang cao » nang cao, sang tao, sang cho

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) OR (chieu sang)) - thanh trung ((tuyen duong) or (van duong)) cong san sang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu sang)) - thanh trung ((tuyen duong) OR (van duong)) cong san sang cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chieu sang)) - thanh trung ((tuyen duong) or (van duong)) cong san sang cao".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chieu sang)) - thanh trung ((tuyen duong) or (van duong)) cong san sang cao*.