Perhaps you should try some spelling variations:
dang xay » dang van, van xay
chat xuc » chat huu, cam xuc, chao xu
thanh va » thanh van, thanh ha, thanh ve
tu sach » thu sach, su sach, te sach
hanh va » hang va, hanh vi
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
sach ky » sac ky, sach y, sach ty
luu tre » cuu tre, luy tre
xuc va » duc va, tuc va, luc va
tru » truc

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

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