Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
thieu sang » chieu sang, thieu khang, thieu quang
hoc thieu » toc thieu, hoc hien
tuong dan » huong dan, tung dan, xuong dan
tang cua » mang cua, hang cua, tang luan
dung cua » dung luan, dung cho
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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 - hanh ((tang cua) or (dung cua)) nhung tuong dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - hanh ((tang cua) OR (dung cua)) nhung tuong dan than cap*.