Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hanh xu » hanh tu, hanh sua, hanh cua
va hanh » va thanh, va danh, ban hanh
hanh du » hanh dua, hanh tu, hanh de
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
xu va » xu van, tu va, su va

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 van hanh xu va hanh du ((cua tre) OR (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty xang) OR (ky nang)) xa hoi. hieu van hanh xu va hanh du ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty xang) or (ky nang)) xa hoi. hieu van hanh xu va hanh du ((cua tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty xang) or (ky nang)) xa hoi. hieu van hanh xu va hanh du ((cua tre) OR (cuu tre))*.