Perhaps you should try some spelling variations:
thanh trung » thanh tung
chiet tach » chieu sach
hanh trung » hanh trang, danh trung, hanh trong
manh trung » manh tung, manh hung, sinh trung
hoc chiet » hoc thiet, hoc nhiet, hoc hien
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap
ap dung » xay dung, van 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 chiet tach - ((((hanh trung) OR (thanh trung))) or (manh trung)) ap dung cong dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - ((((hanh trung) OR (thanh trung))) OR (manh trung)) ap dung cong dan toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chiet tach - ((((hanh trung) OR (thanh trung))) or (manh trung)) ap dung cong dan toan cao*".