Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
te sach » toc sach
hieu ve » hieu va
cau loc » hau loc, cau hoc, cau luc
va danh » va dinh, va dan, va hanh
danh te » danh tu, danh het, danh yen
loc va » hoc va, luc 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 loc va danh 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 loc va danh 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 loc va danh te cua te*.