Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
vuc nang » cuc nang, vu nang, chuc nang
te sach » toc sach
doi cua » dai cua, hoi cua
hieu ve » hieu va
xuc van » duc van, luc van, vuc van
cua tu » cua tuc, cua su, cua cu
v nang » va nang, vu nang, van nang

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 ((v nang) or (vuc nang)) xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh doi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((v nang) OR (vuc nang)) xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh doi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((v nang) or (vuc nang)) xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh doi cua tu".
• Adding a wildcard symbol may retrieve word variants: te sach ((v nang) or (vuc nang)) xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh doi cua tu*.