Perhaps you should try some spelling variations:
hien xanh » hien hanh, hien nhanh, chieu xanh
anh trong » anh thuong, dinh trong, lang trong
cao dong » cao dang, lao dong, cao cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
ap dung » xay dung, van dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - anh trong ((ap dung) or (cao dong)) cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - anh trong ((ap dung) OR (cao dong)) cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - anh trong ((ap dung) or (cao dong)) cong tac toan cao*.