Perhaps you should try some spelling variations:
minh nhan » minh thanh, minh chanh, minh thang
manh nhan » danh nhan, anh nhan, hanh nhan
toc sach » hoc sach, doc sach, thuoc sach
tai cua » thai cua, tai cuc, tri cua
sach ky » sac ky, sach y, sach ty
van dau » van dao, phan dau
van cau » van hau, van chat, toan cau
nang xa » nang x, lang xa, nang ma
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: toc sach ky nang xa hoi. thien ((van cau) OR (van dau)) duc ((manh nhan) or (minh nhan)) tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. thien ((van cau) OR (van dau)) duc ((manh nhan) OR (minh nhan)) tai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. thien ((van cau) OR (van dau)) duc ((manh nhan) or (minh nhan)) tai cua tu".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. thien ((van cau) OR (van dau)) duc ((manh nhan) or (minh nhan)) tai cua tu*.