Perhaps you should try some spelling variations:
nhung luong » hung luong, nhung huong, nhung tuong
hieu xanh » chieu xanh, hieu manh, hieu nganh
tuong cua » truong cua, huong cua, thong cua
luong tai » dung tai, luong va
doc hieu » toc thieu, hoc thieu, hoc hien
tung cua » trung cua, dung cua, tang cua
tai toan » bai toan, tap toan, tai tuan
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: doc hieu xanh - manh ((tung cua) or (tuong cua)) nhung luong tai toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - manh ((tung cua) OR (tuong cua)) nhung luong tai toan ban.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - manh ((tung cua) or (tuong cua)) nhung luong tai toan ban*.