Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh dung » thanh duong, thanh tung, thanh hung
trinh van » trinh han, trinh quan, trinh toan
dung dat » dung va, dung tai
van cong » van dong, van phong, phan cong
dat van » dao van, dat va, dam van

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 tinh)) - thanh dung dat van cong trinh van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) OR (chieu tinh)) - thanh dung dat van cong trinh van ban".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) OR (chieu tinh)) - thanh dung dat van cong trinh van ban*.