Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
nhung cong » dung cong, thong cong, hang cong
trung cao » truong cao, trung co, trung ca
trung cap » truong cao, trung tam
tac thanh » bac thanh, cac thanh, tcc thanh
thanh lap » thanh san, phan lap, thanh hai
cong tac » cong ty

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 - manh ((trung cao) or (trung cap)) nhung cong tac thanh lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - manh ((trung cao) OR (trung cap)) nhung cong tac thanh lap*.