Perhaps you should try some spelling variations:
thanh tinh » thanh binh, nhanh tinh, than kinh
va thanh » gia thanh, ban thanh, va tinh
hieu cac » hieu luc, hieu va, hieu van
sach ky » sach y, sach ty, sach kem
cua tre » cua te, cua triet, dua tren
nam qua » nam quan, nam cua, nam mua
cuu tre » cau tren, cau treo
cac nam » bac nam, cac cam, cac ham
qua va » quan va, qua van, vua va
sac ky » cac ky, sai ky
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: tu ((sach ky) OR (sac ky)) nang x hoi. hieu cac nam qua va thanh tinh ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang x hoi. hieu cac nam qua va thanh tinh ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang x hoi. hieu cac nam qua va thanh tinh ((cua tre) or (cuu tre))*".