Perhaps you should try some spelling variations:
manh nhan » danh nhan, anh nhan, minh nhan
toc sach » hoc sach, doc sach, thuoc sach
van chat » cao chat
duc manh » suc manh, duc anh, duc minh
nhan tai » hang tai, van tai, toan tai
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, toan cau
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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 chat)) duc manh nhan tai ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. thien ((van cau) OR (van chat)) duc manh nhan tai ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. thien ((van cau) OR (van chat)) duc manh nhan tai ((cua tu) or (cua su))".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. thien ((van cau) OR (van chat)) duc manh nhan tai ((cua tu) or (cua su))*.