Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
cam truc » cau truc, nam truc, lam truoc
ly nang » ky nang, ly hang, ly quang
ly vang » ly hang, ly van, ly quang
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
va cam » va cham, va cac, va cao
vi cuu » vi luu, vinh cuu

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 ((ly nang) or (ly vang)) xa hoi. hieu va cam truc va hanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach ((ly nang) OR (ly vang)) xa hoi. hieu va cam truc va hanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: vu khach ((ly nang) or (ly vang)) xa hoi. hieu va cam truc va hanh vi cuu tre*.