Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
hieu su » hieu sau, hieu so, hieu suat
sach tu » sach thu, cach tu, sach ty
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
hanh ve » hanh vi, hanh va, hanh kem
tieu su » thieu so
soc va » hoc va, loc va, doc va
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach tu nang xa hoi. ((((hieu su) OR (tieu su))) or (hieu va)) cham soc va hanh ve cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach tu nang xa hoi. ((((hieu su) OR (tieu su))) OR (hieu va)) cham soc va hanh ve cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach tu nang xa hoi. ((((hieu su) OR (tieu su))) or (hieu va)) cham soc va hanh ve cua triet".
• Adding a wildcard symbol may retrieve word variants: thu sach tu nang xa hoi. ((((hieu su) OR (tieu su))) or (hieu va)) cham soc va hanh ve cua triet*.