Perhaps you should try some spelling variations:
toan thanh » tran thanh, hoan thanh, toan thang
ban thanh » ban hanh, ban hang
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo tieu)) sang - thanh ((toan thanh) or (ban thanh)) dung cong van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo tieu)) sang - thanh ((toan thanh) OR (ban thanh)) dung cong van phan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo tieu)) sang - thanh ((toan thanh) or (ban thanh)) dung cong van phan cau*.