Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung thuat » trong thuat, thuong thuat, trung tuan
thuat dung » thuat hung, thuat ung, thuat xung
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
hoc hieu » hoc hien, doc hieu, hoc dieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » 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: ((hoc hieu) or (hoc thieu)) cach - thanh trung thuat dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) cach - thanh trung thuat dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) cach - thanh trung thuat dung cong tac toan cau*.