Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
khanh vi » hanh vi, khanh v, khang vi
nhanh vi » hanh vi, nhanh va, nhanh thi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, dua tren
va cam » va cham, va cac, va cao
xuc xa » tuc xa, buc xa

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

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