Perhaps you should try some spelling variations:
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao suc » cao su, cao duc
dao duc » tao duoc
dan lai » dan loai, dan lap, dan lat
lai cua » dai cua, hai cua, lai chau
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
va dan » ca dan, va dao, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hieu va ((((giao duc) or (cao suc))) or (dao duc)) va dan lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang xa hoi. hieu va ((((giao duc) OR (cao suc))) OR (dao duc)) va dan lai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hieu va ((((giao duc) or (cao suc))) or (dao duc)) va dan lai cua tre*.