Perhaps you should try some spelling variations:
bat thanh » bac thanh, dat thanh, ba thanh
ban thanh » ban hanh, ban hang
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
cac luc » cau luc, coc luc, cac nuoc
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. lieu va cac luc ((bat thanh) OR (ban thanh)) ((di cua) or (de cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. lieu va cac luc ((bat thanh) OR (ban thanh)) ((di cua) OR (de cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. lieu va cac luc ((bat thanh) OR (ban thanh)) ((di cua) or (de cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. lieu va cac luc ((bat thanh) OR (ban thanh)) ((di cua) or (de cua)) triet*.