Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, dua tren
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc 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 lang xa hoi. hieu ((ve cam) or (va cam)) tuc va hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. hieu ((ve cam) OR (va cam)) tuc va hanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu ((ve cam) or (va cam)) tuc va hanh vi ((cua tre) or (cua triet))*.