Perhaps you should try some spelling variations:
thanh ha » thanh hoa, thanh hai, nhanh ha
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
cuu tre » cua tre, cau tren, cau treo
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cao, va cai
ma hoi » mai hoi, xa hoi, ma hoa
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: su sach ty nang ma hoi. lieu ((va cam) OR (va cac)) duc va thanh ha ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ma hoi. lieu ((va cam) OR (va cac)) duc va thanh ha ((cua te) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ma hoi. lieu ((va cam) OR (va cac)) duc va thanh ha ((cua te) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ma hoi. lieu ((va cam) OR (va cac)) duc va thanh ha ((cua te) or (cuu tre))*.