Perhaps you should try some spelling variations:
quan trong » gian trong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
manh hung » anh huong
hung quan » hung quang, dung quan, hong quan
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: theo tieu tinh - manh hung quan trong cong tac toan cao~.
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - manh hung quan trong cong tac toan cao*.