Perhaps you should try some spelling variations:
cham duc » pham duc, cham soc, pham duy
tinh va » tich va, trinh van, trinh vat
va tinh » may tinh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach xu
sach ty » sach y, sach thu, xach tay
sach uu » sach luu, sach xu, sach dau
va chu » va che, va cau, va chi
chu te » chu de, chu tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((((sach tu) OR (sach uu))) or (sach ty)) nang xa hoi. hieu vu cham duc va tinh va chu te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((((sach tu) OR (sach uu))) OR (sach ty)) nang xa hoi. hieu vu cham duc va tinh va chu te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((((sach tu) OR (sach uu))) or (sach ty)) nang xa hoi. hieu vu cham duc va tinh va chu te*".