Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
thuc day » thuc dan
vuc nang » cuc nang, vu nang, chuc nang
sach vuc » sach duoc, sach nuoc, sach truc
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
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: su sach vuc nang xa hoi. hieu ve cam ((thuc vat) or (thuc day)) hanh vi ((cua triet) or (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach vuc nang xa hoi. hieu ve cam ((thuc vat) OR (thuc day)) hanh vi ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: su sach vuc nang xa hoi. hieu ve cam ((thuc vat) or (thuc day)) hanh vi ((cua triet) or (va triet))*.