Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
nam duoc » nam thuoc, da duoc, dat duoc
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
cao suc » cao su
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao duc » dao duc, giao duc, tao duoc
ve cua » le cua, de cua, te cua
cua te » cua tu
y nang » ky nang, ly nang, v nang

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 ((nam duoc) or (((cao duc) OR (cao suc)))) va thanh ve cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang xa hoi. hieu va ((nam duoc) OR (((cao duc) OR (cao suc)))) va thanh ve cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang xa hoi. hieu va ((nam duoc) or (((cao duc) OR (cao suc)))) va thanh ve cua te".
• Adding a wildcard symbol may retrieve word variants: thuoc sach y nang xa hoi. hieu va ((nam duoc) or (((cao duc) OR (cao suc)))) va thanh ve cua te*.