Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
nhieu tang » chieu sang, hieu lang, nhiet nang
manh trung » manh tung, thanh trung, manh hung
nhung cong » dung cong, thong cong, hang cong
trung cap » truong cao, trung tam
cap nhung » cam nhung, vap nhung, dap nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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 (chinh sach))) or (nhieu tang)) - manh trung cap nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu sach) OR (chinh sach))) OR (nhieu tang)) - manh trung cap nhung cong tac toan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((((chieu sach) OR (chinh sach))) or (nhieu tang)) - manh trung cap nhung cong tac toan cau*".