Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
hieu ve » hieu va
cau luc » cau truc, cau phuc
va hanh » van hanh, va thanh, va danh
hanh te » hanh tu, hanh ve, hanh de
luc va » duc va, tuc va, loc va
te cua » tue cua, le 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: te sach ((ty xang) or (ky nang)) xa hoi. ((hieu ve) or (hieu van)) cau luc va hanh te cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty xang) OR (ky nang)) xa hoi. ((hieu ve) OR (hieu van)) cau luc va hanh te cua te.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty xang) or (ky nang)) xa hoi. ((hieu ve) or (hieu van)) cau luc va hanh te cua te*.