Perhaps you should try some spelling variations:
tranh hoac » thanh hoach, thanh hoa, trinh hoa
hoac khong » hoa khong, hoc khong, hay khong
khong cong » thong cong, khong cang, chong cong
hoc thieu » hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) OR (toc thieu)) xanh - canh tranh hoac khong cong tac toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (toc thieu)) xanh - canh tranh hoac khong cong tac toan tap".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (toc thieu)) xanh - canh tranh hoac khong cong tac toan tap*.