Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va danh » va dinh, va dan, va hanh
vai cua » hai cua, lai cua, bai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) OR (sach y)) nang xa hoi. hieu vu cham duc va danh ((vai cua) or (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) nang xa hoi. hieu vu cham duc va danh ((vai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) nang xa hoi. hieu vu cham duc va danh ((vai cua) or (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) nang xa hoi. hieu vu cham duc va danh ((vai cua) or (dai cua)) te*.