Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
bat thanh » ban thanh, bac thanh, dat thanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao luc » bao luc, cao duc, cao suc
luc bat » suc bat, luc nhat, luat bat
y nang » ky nang, ly nang, v nang
va cao » va cac, va co, va dao
ve cua » le cua, te cua, ve cum
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach y nang xa hoi. hieu va cao luc bat thanh ((ve cua) OR (de cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu va cao luc bat thanh ((ve cua) OR (de cua)) tre".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu va cao luc bat thanh ((ve cua) OR (de cua)) tre*.