Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
so sach » so sanh, bo sach, co sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, dua tren
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ly nang xa hoi. hieu ve cam ((duc va) or (thuc vat)) hanh di ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ly nang xa hoi. hieu ve cam ((duc va) OR (thuc vat)) hanh di ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: so sach ly nang xa hoi. hieu ve cam ((duc va) or (thuc vat)) hanh di ((cua tre) or (cua triet))*.