Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
lai cua » dai cua, hai cua, lai chau
cam duc » cam xuc, cao duc, pham duc
ly vang » ly hang, ly van, ly quang
ly nang » ky nang, ly hang, ly quang
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: thu sach ((ly nang) or (ly vang)) xa hoi. hieu van ((cam duc) or (giao duc)) ban thanh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly nang) OR (ly vang)) xa hoi. hieu van ((cam duc) OR (giao duc)) ban thanh lai cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) or (ly vang)) xa hoi. hieu van ((cam duc) or (giao duc)) ban thanh lai cua te*.