Perhaps you should try some spelling variations:
tuan vai » tuan tai, trang vai, tuan khai
van tuan » van quan, van ban, anh tuan
hieu van » hieu va, thien van, lieu va
cam duc » cam xuc, pham duc, nam duoc
vai cua » dai cua, hai cua, lai cua
cao duc » dao duc, cao suc, giao duc
sach ly » sach y, sach lo, sach hay
vang xa » lang xa, mang xa, ang xa
sach ty » sach y, sach tu, sach thu
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 van ((cam duc) 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 van ((cam duc) 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 van ((cam duc) or (cao duc)) van tuan vai cua te*.