Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
danh lai » danh sai, gianh lai, dinh lam
dua tren » dung tren
tu sach » thu sach, su sach, te sach
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va danh » va dinh, va dan, va hanh
y sang » _ sang, duy sang
ma hoi » mai hoi, ma hoa, me hoi
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 y sang ((ma hoi) or (xa hoi)). hieu vu cham duc va danh lai ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y sang ((ma hoi) OR (xa hoi)). hieu vu cham duc va danh lai ((dua tren) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach y sang ((ma hoi) or (xa hoi)). hieu vu cham duc va danh lai ((dua tren) or (cua te))*.