Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tuan vai » tuan tai, trang vai, tuan khai
van tuan » van quan, van ban, anh tuan
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
cam duc » cam xuc, cao duc, pham duc
le lang » le tang, le dang, le xang
ly lanh » ly anh, ly hanh, ly danh
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: te sach ((ly lanh) or (le lang)) xa hoi. hieu van ((cam duc) or (giao duc)) van tuan vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ly lanh) OR (le lang)) xa hoi. hieu van ((cam duc) OR (giao duc)) van tuan vai cua te.
• Adding a wildcard symbol may retrieve word variants: te sach ((ly lanh) or (le lang)) xa hoi. hieu van ((cam duc) or (giao duc)) van tuan vai cua te*.