Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
qua cham » qua hai, qua cac, va cham
sach tu » sach thu, cach tu, sach ty
hoi cua » hoi chuc
doi cua » dai cua
te sach » toc sach
tang ma » mang may, tang van
nang xa » nang x, lang xa, nang ma
soc va » hoc va, loc va, doc va

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 tu ((nang xa) or (tang ma)) hoi. hieu qua cham soc va thanh ((doi cua) OR (hoi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu ((nang xa) OR (tang ma)) hoi. hieu qua cham soc va thanh ((doi cua) OR (hoi cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tu ((nang xa) or (tang ma)) hoi. hieu qua cham soc va thanh ((doi cua) OR (hoi cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach tu ((nang xa) or (tang ma)) hoi. hieu qua cham soc va thanh ((doi cua) OR (hoi cua)) te*.