Perhaps you should try some spelling variations:
dang xay » dang van, van xay
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
va chat » van chat, va phat, cao chat
luu tre » luu tru, cuu tre, luy tre
sach ky » sac ky, sach y, sach ty
ve chat » van chat
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
va luu » van luu, ta luu, vi luu

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