Perhaps you should try some spelling variations:
nhiet tach » chiet tach
hanh trung » thanh trung, hanh trang, manh trung
hoc nhiet » hoc thiet, hoc nghien, hoc hien
cap dung » ap dung, chan dung, cach dung
cao dung » cao dang, cao dong, cao ung
cong dan » cong san, cong tan, huong dan
dan van » dang van, doan van, dao van

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 - hanh trung ((cap dung) OR (cao dung)) cong dan van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc nhiet tach - hanh trung ((cap dung) OR (cao dung)) cong dan van ban".
• Adding a wildcard symbol may retrieve word variants: hoc nhiet tach - hanh trung ((cap dung) OR (cao dung)) cong dan van ban*.