Perhaps you should try some spelling variations:
te sach » toc sach
lang xa » lang ha, dang xay, lang van
qua cac » cua cac
cac duc » cac du, cao duc, cac dac
hanh di » hanh vi, hanh de, hang di
hanh ve » hanh vi, hanh va, hanh kem
sach v » sach va, sach y, sach 2
v lang » va lang, o lang, _ lang
cua tu » cua tuc, cua su, cua cu

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 v lang xa hoi. hieu qua cac duc va ((hanh di) or (hanh ve)) ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach v lang xa hoi. hieu qua cac duc va ((hanh di) OR (hanh ve)) ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: te sach v lang xa hoi. hieu qua cac duc va ((hanh di) or (hanh ve)) ((cua te) or (cua tu))*.