Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vu khach » vu khanh, vu khac, vay khach
thuc ban » thuoc ban, thu ban, thuc van
thuc dan » thuc hanh, hoc dan, thuc vat
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, dua tren
y nang » ky nang, ly nang, v nang
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu khach y nang xa hoi. hieu ve am ((thuc ban) or (thuc dan)) hanh vi ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach y nang xa hoi. hieu ve am ((thuc ban) OR (thuc dan)) hanh vi ((cua tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu khach y nang xa hoi. hieu ve am ((thuc ban) or (thuc dan)) hanh vi ((cua tre) or (cua triet))*.