Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
ban tinh » ban thanh, quan tinh, ban hanh
sach ky » sach y, sach ty, sach kem
cuu tre » cua tre, cau treo
tinh va » tich va, trinh van, trinh vat
cuc ban » cua ban, cac ban, cuu ban
cam cuc » cam xuc, cham cuu, pham cuc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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)) lang xa hoi. hieu ve cam cuc ban tinh va ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) lang xa hoi. hieu ve cam cuc ban tinh va ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) lang xa hoi. hieu ve cam cuc ban tinh va ((cuu tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) lang xa hoi. hieu ve cam cuc ban tinh va ((cuu tre) or (cau tren))*.