Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
vu khach » vu khanh, vu khac, vay khach
va thanh » gia thanh, ban thanh, va tinh
dau tren » dau tien, dat tren, dau tieng
nang ma » tang ma, sang ma, nang cao
cai cuc » tai cuc, chi cuc, hai cuc
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa
va cai » va cac, va bai, va dai
cuc va » chuc va, duc va, cuu 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 khach) or (vu bach)) ky nang ma hoi. lieu va cai cuc va thanh van ((cuu tre) or (dau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu khach) OR (vu bach)) ky nang ma hoi. lieu va cai cuc va thanh van ((cuu tre) OR (dau tren)).
• Adding a wildcard symbol may retrieve word variants: ((vu khach) or (vu bach)) ky nang ma hoi. lieu va cai cuc va thanh van ((cuu tre) or (dau tren))*.