Perhaps you should try some spelling variations:
vu khanh » vu thanh, van khanh, duy khanh
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
cao tuc » dao tuc, cao duc, cao suc
cuu tre » cua tre, cau tren, cau treo
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu
x hoi » xa hoi, o hoi, x ho

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) or (((vu khanh) or (vay khach)))) ky nang x hoi. lieu va cao tuc va thanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (((vu khanh) OR (vay khach)))) ky nang x hoi. lieu va cao tuc va thanh vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (((vu khanh) or (vay khach)))) ky nang x hoi. lieu va cao tuc va thanh vi cuu tre*.