Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
dung cong » dung trong
lua dung » qua dung, luan hung, qua duong
cong tac » cong ty
tac pham » thuc pham, san pham
pham lap » phan lap, pham lan, pham gap
thi lua » thi luan, thi dua, thi cua

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) or (chieu tinh)) - hoang thi lua dung cong tac pham lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - hoang thi lua dung cong tac pham lap.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - hoang thi lua dung cong tac pham lap*.