Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
dang van » hoang van, hang va
ly nang » ky nang, ly hang, ly vang
van cua » vang cua, ban cua, dan cua
va dang » van dang, va nang, va lang
ve cham » va cham, ve chat, vu cham
sach ly » sach y, sach lo, sach ty
tu cham » toc cham, thi cham
loc va » hoc va, luc va
cua te » cua tu
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ly nang ((x hoi) OR (xa hoi)). hieu ((ve cham) or (tu cham)) loc va dang van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ly nang ((x hoi) OR (xa hoi)). hieu ((ve cham) OR (tu cham)) loc va dang van cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ly nang ((x hoi) OR (xa hoi)). hieu ((ve cham) or (tu cham)) loc va dang van cua te*".