Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ky nang xa hoi. ((hieu va) or (lieu va)) co ((xuc van) or (duc tan)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang xa hoi. ((hieu va) OR (lieu va)) co ((xuc van) OR (duc tan)) hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. ((hieu va) or (lieu va)) co ((xuc van) or (duc tan)) hanh di cua triet*.