Perhaps you should try some spelling variations:
cac thoi » cac toi, cac hop, cac tro
hanh cat » hanh cac, hanh luat, nhanh cay
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
va hanh » van hanh, va thanh, va danh
cat cuu » cap cuu, chat cua, cham cuu
cuu tre » cua tre, cau tren, cau treo
ma hoi » mai hoi, xa hoi, ma hoa

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 ty nang ma hoi. hieu va ((cac tuc) or (cac thoi)) va hanh cat cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang ma hoi. hieu va ((cac tuc) OR (cac thoi)) va hanh cat cuu tre*.