Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, chinh truong
manh truong » manh trung, manh tuong, anh truong
dang cong » dung cong
khao cuu » cham cuu, chao chu, kho cua
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: khao cuu tinh - ((hanh truong) or (manh truong)) cao dang cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: khao cuu tinh - ((hanh truong) OR (manh truong)) cao dang cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: khao cuu tinh - ((hanh truong) or (manh truong)) cao dang cong tac toan ban*.