Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
khach lo » khac do, khac co, khac mo
hieu van » hieu va, thien van, hieu ve
lo nang » ho nang, ly nang, loai nang
nang xa » nang x, lang xa, nang ma
cam tuc » cam xuc, cam tu, nam thuc
xa hanh » xa thanh, xa khanh, va hanh
cua tuc » cua duc, cua thuoc, luat tuc
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach lo nang xa hoi. ((hieu van) or (lieu va)) cam tuc xa hanh vi ((cua tu) OR (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach lo nang xa hoi. ((hieu van) OR (lieu va)) cam tuc xa hanh vi ((cua tu) OR (cua tuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu khach lo nang xa hoi. ((hieu van) or (lieu va)) cam tuc xa hanh vi ((cua tu) OR (cua tuc))".
• Adding a wildcard symbol may retrieve word variants: vu khach lo nang xa hoi. ((hieu van) or (lieu va)) cam tuc xa hanh vi ((cua tu) OR (cua tuc))*.