Perhaps you should try some spelling variations:
va duong » van duong, va tuong, va huong
nang xa » nang x, lang xa, nang ma
qua cam » qua cham, qua cac, qua ca
cam duc » cam xuc, cao duc, pham duc
va dung » van dung, vat dung, va ung
dat cua » dai cua, day cua, mat cua
sach v » sach va, sach 2, sach vay
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: su ((sach v) or (sach y)) nang xa hoi. hieu qua cam duc ((va dung) OR (va duong)) dat cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach v) OR (sach y)) nang xa hoi. hieu qua cam duc ((va dung) OR (va duong)) dat cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach v) or (sach y)) nang xa hoi. hieu qua cam duc ((va dung) OR (va duong)) dat cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach v) or (sach y)) nang xa hoi. hieu qua cam duc ((va dung) OR (va duong)) dat cua te*.