Perhaps you should try some spelling variations:
thong dung » thong cong, thong thuong
tac thong » tac thuong, tac trong, tac chong
toc hieu » doc hieu, hoc thieu, thuc hieu
cong tac » cong ty
dung dat » dung va, dung tai
dat than » dat thanh, dan than, dat khanh
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc hieu) OR (toc thieu)) cach - thanh cong tac thong dung dat than cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc hieu) OR (toc thieu)) cach - thanh cong tac thong dung dat than cap*".