Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
trung dai » truong dai, truong dao, trung tam
dai trong » tai trong, bai trong, dai tuong
cong hoc » dong hoc, cong hoa, cong coc
hoc phan » hoc dan, hoc pho
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((thieu xanh) or (thi thanh)) - thanh trung dai trong cong hoc phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (thi thanh)) - thanh trung dai trong cong hoc phan lap.
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) or (thi thanh)) - thanh trung dai trong cong hoc phan lap*.