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