Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
suat nhung » thuat nhung, suat thong, cua nhung
hieu lang » chieu sang, hieu quang, nhieu tang
thien van » thi van
hanh nang » anh nang, ganh nang, hanh mang
tuong ban » tuong bang, trong ban, tuong dan
ban toan » bai toan, ban than, van toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (thien van)) - hanh nang suat nhung tuong ban toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (thien van)) - hanh nang suat nhung tuong ban toan ban*.