Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
trung chan » trung phan, trong chan, trung can
chan thong » chan thuong, chan hong, nhan thong
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cong tan » cong tac, cong san, cong thanh
tan hoc » toan hoc, than hoc, van hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - thanh trung chan thong cong tan hoc cao~.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung chan thong cong tan hoc cao*.