Perhaps you should try some spelling variations:
tuan vai » tuan tai, trang vai, tuan khai
nam duoc » nam thuoc, da duoc, dat duoc
van tuan » van quan, van ban, anh tuan
cao duc » dao duc, cao suc, giao duc
vai cua » dai cua, hai cua, lai cua
sach ty » sach y, sach tu, sach thu
vang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
sach ly » sach y, sach lo, sach hay
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 ly) or (sach ty)) vang xa hoi. hieu ve ((nam duoc) or (cao duc)) van tuan vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ly) OR (sach ty)) vang xa hoi. hieu ve ((nam duoc) OR (cao duc)) van tuan vai cua te.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ly) or (sach ty)) vang xa hoi. hieu ve ((nam duoc) or (cao duc)) van tuan vai cua te*.