Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
tang luong » nang luong, tang cuong, hang luong
luong cong » dung cong, trong cong, cong cong
khuong anh » phuong anh, khuong tinh, hong anh
huong anh » phuong anh, hong anh, hung anh
anh tang » anh bang, anh dang, anh nang
nhan cau » nhanh cau, phan cau, nhan sau

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 (nhieu tang)) - anh tang luong cong ((huong anh) OR (khuong anh)) nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (nhieu tang)) - anh tang luong cong ((huong anh) OR (khuong anh)) nhan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (nhieu tang)) - anh tang luong cong ((huong anh) OR (khuong anh)) nhan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (nhieu tang)) - anh tang luong cong ((huong anh) OR (khuong anh)) nhan cau*.