Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cua triet » cua viet, su triet, va triet
hieu van » thien van, lieu va, hieu ve
hanh cac » hang cac, hanh cat, nhanh cay
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
cam tuc » cam xuc, nam thuc, dam thuc
va hanh » van hanh, va thanh, va danh
cac cua » cach cua, cac qua, ca cua
cam tu » cam thu, nam tu, dam tu

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 ky nang xa hoi. ((hieu va) or (hieu van)) ((cam tuc) OR (cam tu)) va hanh cac cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ky nang xa hoi. ((hieu va) OR (hieu van)) ((cam tuc) OR (cam tu)) va hanh cac cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach ky nang xa hoi. ((hieu va) or (hieu van)) ((cam tuc) OR (cam tu)) va hanh cac cua triet*".