Perhaps you should try some spelling variations:
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
toc hieu » doc hieu, hoc thieu, thuc hieu
cua dung » cua dang, cua dong, qua dung
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: ((toc hieu) or (toc thieu)) manh - hanh doanh cua dung cong tinh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc hieu) OR (toc thieu)) manh - hanh doanh cua dung cong tinh toan cao.
• Adding a wildcard symbol may retrieve word variants: ((toc hieu) or (toc thieu)) manh - hanh doanh cua dung cong tinh toan cao*.