Perhaps you should try some spelling variations:
han nang » phan nang, van nang, han yang
thanh di » thanh doi, thanh de, thanh do
ban nang » ban hang, van nang, ban dang
te sach » toc sach
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((han nang) OR (ban nang)) x hoi. hieu va cam ((luc va) or (tuc va)) thanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((han nang) OR (ban nang)) x hoi. hieu va cam ((luc va) OR (tuc va)) thanh di cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((han nang) OR (ban nang)) x hoi. hieu va cam ((luc va) or (tuc va)) thanh di cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((han nang) OR (ban nang)) x hoi. hieu va cam ((luc va) or (tuc va)) thanh di cua tu*.