Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
tranh van » tran van, trinh van, thanh van
dung cong » dung trong
van dung » van dong, xay dung, tin dung
pham ma » pham tai, pham xay
pham va » pham tai, phan van, pham xay

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - canh tranh van dung cong trinh ((pham ma) or (((pham va) OR (pham van))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - canh tranh van dung cong trinh ((pham ma) OR (((pham va) OR (pham van)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu sach - canh tranh van dung cong trinh ((pham ma) or (((pham va) OR (pham van))))".
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - canh tranh van dung cong trinh ((pham ma) or (((pham va) OR (pham van))))*.