Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham duc » pham duc, cham soc, pham duy
danh sai » dung sai, danh bat, danh dau
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang xa
va danh » va dinh, va dan, va hanh
sai cua » dai cua, hai cua, lai cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (cac ky)) ((nang xa) or (nang x)) hoi. hieu van cham duc va danh sai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (cac ky)) ((nang xa) OR (nang x)) hoi. hieu van cham duc va danh sai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (cac ky)) ((nang xa) or (nang x)) hoi. hieu van cham duc va danh sai cua te*.