Perhaps you should try some spelling variations:
phan truong » phan thuong, pham truong, phan trong
thanh thanh » nhanh thanh, thanh toan, phan thanh
thanh phan » thanh pho, thanh san, thanh toan
doi chieu » doc hieu, doi chi, mot chieu
ho chieu » theo chieu, hoc thieu, mot chieu
cong tac » cong ty
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) or (ho chieu)) sach - thanh thanh phan truong ((huong dan) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (ho chieu)) sach - thanh thanh phan truong ((huong dan) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (ho chieu)) sach - thanh thanh phan truong ((huong dan) or (cong tac)) toan cau*.