Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh lai » hanh lam, hanh tai, thanh lap
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
cam duc » cam xuc, pham duc, nam duoc
cao duc » dao duc, cao suc, giao duc
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
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: thu sach ty nang x hoi. ((lieu va) or (hieu qua)) ((cam duc) OR (cao duc)) va hanh lai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang x hoi. ((lieu va) OR (hieu qua)) ((cam duc) OR (cao duc)) va hanh lai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty nang x hoi. ((lieu va) or (hieu qua)) ((cam duc) OR (cao duc)) va hanh lai cua tu".
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang x hoi. ((lieu va) or (hieu qua)) ((cam duc) OR (cao duc)) va hanh lai cua tu*.