Perhaps you should try some spelling variations:
thuyet thuat » thuyet thuc, thuyet thiet, thu thuat
thuat tac » thuat tach, thuat tao, thuat tai
dung cong » dung trong
trung va » truong va, trung ha, trung tam
trang va » tran van
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cap » khan cap, than cap, cao cap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuyet thuat tac - thanh ((trung va) or (((trang va) OR (hang va)))) dung cong dan chan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuyet thuat tac - thanh ((trung va) OR (((trang va) OR (hang va)))) dung cong dan chan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuyet thuat tac - thanh ((trung va) or (((trang va) OR (hang va)))) dung cong dan chan cap".
• Adding a wildcard symbol may retrieve word variants: thuyet thuat tac - thanh ((trung va) or (((trang va) OR (hang va)))) dung cong dan chan cap*.