Perhaps you should try some spelling variations:
cua thuong » cua truong, cua phuong, ca thuong
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
cong vang » cong lang, cong quang, cong ngang
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong van » cong san, song van, cong tan
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu manh) or (chieu sach)) - anh tang cua thuong ((cong van) OR (cong vang)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu manh) OR (chieu sach)) - anh tang cua thuong ((cong van) OR (cong vang)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu manh) or (chieu sach)) - anh tang cua thuong ((cong van) OR (cong vang)) than cao".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu manh) or (chieu sach)) - anh tang cua thuong ((cong van) OR (cong vang)) than cao*.