Perhaps you should try some spelling variations:
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
hieu ve » hieu va, hieu van
cau luc » cau phuc
va hanh » van hanh, va thanh, va danh
di cua » doi cua, de 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: te sach ty nang xa hoi. hieu ve ((cau luc) or (cau truc)) va hanh ((di cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ve ((cau luc) OR (cau truc)) va hanh ((di cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ve ((cau luc) or (cau truc)) va hanh ((di cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ve ((cau luc) or (cau truc)) va hanh ((di cua) OR (dai cua)) te*.