Perhaps you should try some spelling variations:
tieu trinh » trieu tinh, lieu tinh, viet trinh
tien trinh » bien tinh, tien thanh, viet trinh
manh trung » manh tung, thanh trung, manh hung
trung cap » truong cao, trung tam
dung cong » dung trong
cap dung » ap dung, cao dung, chan dung
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 ((((tieu trinh) or (tien trinh))) or (tien thinh)) - manh trung cap dung cong dan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((tieu trinh) OR (tien trinh))) OR (tien thinh)) - manh trung cap dung cong dan van ban.
• Adding a wildcard symbol may retrieve word variants: hoc ((((tieu trinh) or (tien trinh))) or (tien thinh)) - manh trung cap dung cong dan van ban*.