Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
vu khach » vu khanh, vu khac, vay khach
hanh vai » hanh vi, hanh va, hanh tai
hoc cac » hoc cao
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua te » cua tu

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) or (hoc cac)) ky nang xa hoi. hieu ve cham thuc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (hoc cac)) ky nang xa hoi. hieu ve cham thuc va hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (hoc cac)) ky nang xa hoi. hieu ve cham thuc va hanh vai cua te*.