Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu sach » chinh sach, chiet tach, chieu sang
cong thanh » dong thanh, cong trinh, cong tan
hieu lang » chieu sang, hieu quang, nhieu tang
tranh vat » trinh vat, tranh va, tranh van
vat nhung » va nhung, vap nhung, vai nhung
san tap » han tap, man tap, san tay

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu lang) or (chieu sach)) - canh tranh vat nhung cong thanh san tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (chieu sach)) - canh tranh vat nhung cong thanh san tap.
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (chieu sach)) - canh tranh vat nhung cong thanh san tap*.