Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thu sach » tu sach, thuat sach, thuoc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
ve cac » va cac, vien cac
xuc va » tuc va, luc va
xac va » tac va, ac va, bac va
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: thu sach ky nang xa hoi. hieu ve cac ((((xuc va) or (xac va))) or (duc va)) hanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu ve cac ((((xuc va) OR (xac va))) OR (duc va)) hanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu ve cac ((((xuc va) or (xac va))) or (duc va)) hanh di cua triet*.