Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
ly quang » le quang, vu quang
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
ty nang » ky nang, ty xang, ty hang
va cua » va chua, via cua, ca cua
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 ((ty nang) or (ly quang)) x ho. hieu van pham duc va thanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty nang) OR (ly quang)) x ho. hieu van pham duc va thanh va cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty nang) or (ly quang)) x ho. hieu van pham duc va thanh va cua te*.