Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thu sach » tu sach, thuat sach, thuoc sach
chat xuc » chat huu, cam xuc, chao xu
tu cach » tu cac
va hanh » van hanh, va thanh, va danh
luu tre » luu tru, cuu tre, luy tre
hieu ve » hieu va
nang xa » nang x, lang xa, nang ma
xuc va » duc va, tuc va, luc va
vi luu » vi lua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh vi luu tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky nang xa hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh vi luu tre*.