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 can » trung cap, trung van, trong can
dung cong » dung trong
can dung » chan dung, van dung, dan dung
cuu toan » cuu hoan, cua toan, huu toan
huu tuan » huu han, huu tung

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