Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua dung » cua dang, cua dong, qua dung
cong tap » cuong tap, cong tac, tong tap
cong tan » cong tac, cong san, cong thanh
toan cao » toan ban, toan tap

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 cua dung ((cong tap) or (cong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung cua dung ((cong tap) OR (cong tan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung cua dung ((cong tap) or (cong tan)) toan cao*.