Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
cham cuu » cap cuu, chat cua
sach dao » lanh dao
nhan luc » nang luc
dao nang » cao nang, da nang, dai nang
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
di cua » dai cua, doi cua, de cua
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: toc sach dao nang xa hoi. lieu va ((cham cuu) or (nhan luc)) ((va danh) OR (va hanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach dao nang xa hoi. lieu va ((cham cuu) OR (nhan luc)) ((va danh) OR (va hanh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach dao nang xa hoi. lieu va ((cham cuu) or (nhan luc)) ((va danh) OR (va hanh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach dao nang xa hoi. lieu va ((cham cuu) or (nhan luc)) ((va danh) OR (va hanh)) di cua te*.