Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
nam loc » nam lo, nam moc, nam soc
va dinh » van dinh, va kinh, va tinh
te sai » te tai, te lai, te hai
te bai » te bao, te tai, te ban
loc va » hoc va, luc va
ve cua » de cua, te cua, ve cum
le cua » ly cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sai) or (te bai)) ky nang xa hoi. hieu van nam loc va dinh ((ve cua) OR (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sai) OR (te bai)) ky nang xa hoi. hieu van nam loc va dinh ((ve cua) OR (le cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sai) or (te bai)) ky nang xa hoi. hieu van nam loc va dinh ((ve cua) OR (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((te sai) or (te bai)) ky nang xa hoi. hieu van nam loc va dinh ((ve cua) OR (le cua)) tre*.