Perhaps you should try some spelling variations:
khach doi » khac di, khac do, sach doi
vu khach » vu khac, vay khach, cua khach
vu khanh » vu thanh, van khanh, duy khanh
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
qua cac » cua cac
sang ma » tang ma, nang ma, sang tao
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
doc va » duoc va, hoc va, duc va
vi cua » vai cua, di cua

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 doi ((nang xa) or (sang ma)) hoi. hieu ((qua cac) or (vu khanh)) doc va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu khach doi ((nang xa) OR (sang ma)) hoi. hieu ((qua cac) OR (vu khanh)) doc va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu khach doi ((nang xa) or (sang ma)) hoi. hieu ((qua cac) or (vu khanh)) doc va danh vi cua tre*.