Perhaps you should try some spelling variations:
phan thanh » pham thanh, ban thanh, van thanh
hoc thieu » hoc hien
hang cong » dang cong, hang nong, bang cong
cong phan » cong nhan, cong khan, chong phap
thanh bac » nhanh bac, thanh bai, thanh san
van hanh » van thanh, ban hanh, van anh
hanh va » hang va, hanh vi
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) manh - van hanh va hang cong phan thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) manh - van hanh va hang cong phan thanh bac.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) manh - van hanh va hang cong phan thanh bac*.