Perhaps you should try some spelling variations:
nhiet tach » chiet tach
minh trang » tinh trang, minh hoang, minh tuan
hoc nhiet » hoc thiet, hoc nghien, hoc hien
dung cong » dung trong
hach toan » thanh toan
manh toan » thanh toan, anh tuan, tinh toan
va dung » van dung, va duong, vat 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 nhiet tach - ((minh trang) or (canh tranh)) va dung cong ((hach toan) OR (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nhiet tach - ((minh trang) OR (canh tranh)) va dung cong ((hach toan) OR (manh toan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhiet tach - ((minh trang) or (canh tranh)) va dung cong ((hach toan) OR (manh toan)) cau*".