Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
cua nhung » va nhung
hoc lieu » hoc dieu, hoc sieu, hoc tieu
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 lieu tinh - ((canh tranh) or (thanh trung)) cua nhung cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc lieu tinh - ((canh tranh) OR (thanh trung)) cua nhung cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc lieu tinh - ((canh tranh) or (thanh trung)) cua nhung cong tac toan tap*.