Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
vu cham » va cham, vu kham, tu cham
sach lo » sach dao, sach doi, sach hoi
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
hieu vu » hieu va, hieu ve, hieu su
soc va » hoc va, loc va, doc va

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

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