Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
hoc sach » hoc sinh, hoc cac, hoc anh
cac thuc » cac thu, can thuc, cay thuc
hang doi » hang di, hang loi, huong doi
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hang » van hang, va nang, va lang
doi cua » dai cua, hoi cua
y nang » ky nang, ly nang, v nang
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: hoc sach y nang xa hoi. hieu ve ((cac thuc) OR (cach thuc)) va hang doi cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach y nang xa hoi. hieu ve ((cac thuc) OR (cach thuc)) va hang doi cua te".
• Adding a wildcard symbol may retrieve word variants: hoc sach y nang xa hoi. hieu ve ((cac thuc) OR (cach thuc)) va hang doi cua te*.