Perhaps you should try some spelling variations:
phan thai » phan thi, phan hai, phan than
thai cua » than cua, tai cuc, tri cua
toc sach » doc sach, thuoc sach, nuoc sach
hoc sach » hoc sinh, hoc cac, hoc anh
cham tuc » nham thuc, pham thuc, tham thuc
tu sach » thu sach, su sach, te sach
va phan » van phan, va phat, va phap
va cham » va chat, va tham
danh xa » danh ca, dinh xa, canh xa
ky danh » ky anh, ky dang
cua tre » cua te, cuu tre, cua triet
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: ((tu sach) or (((toc sach) OR (hoc sach)))) ky danh xa hoi. lieu va cham tuc va phan thai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (((toc sach) OR (hoc sach)))) ky danh xa hoi. lieu va cham tuc va phan thai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (((toc sach) OR (hoc sach)))) ky danh xa hoi. lieu va cham tuc va phan thai cua tre*".