Perhaps you should try some spelling variations:
cham cuu » cap cuu, chat cua
trinh vi » trinh va, trinh ve, trinh viet
sach ky » sac ky, sach y, sach ty
tinh vi » tinh voi, tinh va, dinh vi
tu sach » thu sach, su sach, te sach
cam cuc » cam xuc, pham cuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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