Perhaps you should try some spelling variations:
khai muoi » hai muoi, hai moi, khac tuoi
van khai » van hai, van khi, dan khai
lieu van » lieu va, hieu van, sieu van
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
muoi va » moi va, nuoi va, tuoi va
cuu tre » cau tren, cau treo
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
bach y » sach y

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach y ((nang xa) or (nang ma)) hoi. lieu van khai muoi va hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach y ((nang xa) OR (nang ma)) hoi. lieu van khai muoi va hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: vu bach y ((nang xa) or (nang ma)) hoi. lieu van khai muoi va hanh vi ((cua tre) or (cuu tre))*.