Perhaps you should try some spelling variations:
thanh truong » thanh trung, thanh thuong, thanh tung
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
hieu lang » chieu sang, hieu quang, nhieu tang
cao trong » cao truong, cay trong, tao trong
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: ho ((((hieu lang) or (hieu qua))) or (chieu sach)) - thanh truong cao trong cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((hieu lang) OR (hieu qua))) OR (chieu sach)) - thanh truong cao trong cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((((hieu lang) or (hieu qua))) or (chieu sach)) - thanh truong cao trong cong tac toan cau*.