Perhaps you should try some spelling variations:
trung hocy » trung hoa, truong hoc, trong hoc
trung hoci » trung hoa, truong hoc, truong hoi
hieu xanh » chieu xanh, hieu manh, hieu nganh
trung hoc » trung quoc
dung cong » dung trong
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh ((((trung hocy) or (trung hoci))) or (trung hoc)) dung cong dan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh ((((trung hocy) OR (trung hoci))) OR (trung hoc)) dung cong dan chan cao.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh ((((trung hocy) or (trung hoci))) or (trung hoc)) dung cong dan chan cao*.