Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
dao nang » cao nang, da nang, dai nang
cham luc » cham soc, cham cuu, chat lua
sach dao » lanh dao
nhan luc » nang luc
nang xa » nang x, lang xa, nang ma
va danh » va dinh, va dan, va hanh
de cua » le cua, te cua, dieu cua
di cua » dai cua, doi cua, do cua

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 luc) or (nhan luc)) va danh ((di cua) OR (de cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach dao nang xa hoi. lieu va ((cham luc) OR (nhan luc)) va danh ((di cua) OR (de cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach dao nang xa hoi. lieu va ((cham luc) or (nhan luc)) va danh ((di cua) OR (de cua)) te".
• Adding a wildcard symbol may retrieve word variants: toc sach dao nang xa hoi. lieu va ((cham luc) or (nhan luc)) va danh ((di cua) OR (de cua)) te*.