Perhaps you should try some spelling variations:
hanh hanh » hanh han, xanh hanh, nhanh thanh
thu sach » tu sach, thuat sach, thuoc sach
van chat » cao chat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, toan cau
hanh te » hanh tu, hanh ve, hanh de
cua tu » cua tuc, cua su, cua cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang xa hoi. thien ((van cau) OR (van chat)) thuc hanh hanh te ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. thien ((van cau) OR (van chat)) thuc hanh hanh te ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ky nang xa hoi. thien ((van cau) OR (van chat)) thuc hanh hanh te ((cua te) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. thien ((van cau) OR (van chat)) thuc hanh hanh te ((cua te) or (cua tu))*.