Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cang thang » cong thanh, dang thanh
lang trong » dung trong, cong trong, dong trong
nang huong » nang thuong, nang luong, hang thuong
hoc thieu » toc thieu, hoc hien
dan thai » dang thai, dan thi, dan than
thai cao » tai cao, thoai cac, thuat cao
va nang » van nang, da nang, cam nang

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 - ((cang thang) or (lang trong)) va nang huong dan thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((cang thang) OR (lang trong)) va nang huong dan thai cao*.