Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
lo van » le van, vo van, so van
te sac » te sach, te cac, te san
loc va » hoc va, luc va
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang xa) or (lang van)) hoi. hieu va cac ((loc va) or (lo van)) hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (lang van)) hoi. hieu va cac ((loc va) OR (lo van)) hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) or (lang van)) hoi. hieu va cac ((loc va) or (lo van)) hanh vi cua tu*.