Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
van thuong » va thuong, van chuong, van phuong
hoc thieu » hoc hien
manh dung » manh hung, manh tung, anh dung
dung van » duong van, dung va, dang van
cong van » cong vang, cong san, song van
van chat » cao chat
van van » van ban, tan van, san van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (hoc thieu)) tinh - manh dung van thuong cong van van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (hoc thieu)) tinh - manh dung van thuong cong van van chat*.