Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
van cham » van chat, van tham, va cham
cham tuc » nham thuc, pham thuc, tham thuc
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cua triet, dua tren
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
cuu tre » cau tren, cau treo
tuc va » thuc va, truc va, tuc xa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (thu sach)) tu nang xa hoi. hieu van cham tuc va thanh lai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (thu sach)) tu nang xa hoi. hieu van cham tuc va thanh lai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (thu sach)) tu nang xa hoi. hieu van cham tuc va thanh lai ((cua tre) or (cuu tre))*.