Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
van cau » van dau, van hau, van chat
lai cua » dai cua, hai cua, thai cua
ac va » tac va, bac va, mac va

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 ty nang xa hoi. thi van cau ((ac va) or (duc va)) hanh ((lai cua) OR (lai chau)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang xa hoi. thi van cau ((ac va) OR (duc va)) hanh ((lai cua) OR (lai chau)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang xa hoi. thi van cau ((ac va) or (duc va)) hanh ((lai cua) OR (lai chau)) te".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang xa hoi. thi van cau ((ac va) or (duc va)) hanh ((lai cua) OR (lai chau)) te*.