Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
tuc van » thuc van, truc van, duc van
hai cua » thai cua, dai cua, hoi cua
lai cua » dai cua, lai chau, thai cua
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky
tuc va » thuc va, truc va, tuc xa

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

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