Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
nhanh lang » nhanh quang, nhanh thang, nhan dang
duong manh » duong van
hoc thieu » toc thieu, hoc hien
cong manh » cong danh, cong thanh, hoang manh
toan ban » van ban
lang va » lang van, hang va, lang ha

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 sang - nhanh lang va nhung ((cong manh) or (duong manh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - nhanh lang va nhung ((cong manh) OR (duong manh)) toan ban*.