Perhaps you should try some spelling variations:
thanh nghia » thanh nghi, thanh nga, thanh nha
nghia cua » nghiep cua, nghia xa, nghia duy
sach thu » sach thue, sach thieu, sach tham
da thanh » dao thanh, dat thanh, dam thanh
ve cham » va cham, ve chat, vu cham
thuc da » thuc dan, thuc day, thuc dia
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, xach tay
ve cam » ve cac, va cam, ve cai
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ty) or (sach thu)) nang x hoi. hieu ((ve cam) OR (ve cham)) thuc da thanh nghia cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ty) OR (sach thu)) nang x hoi. hieu ((ve cam) OR (ve cham)) thuc da thanh nghia cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ty) or (sach thu)) nang x hoi. hieu ((ve cam) OR (ve cham)) thuc da thanh nghia cua tre*".