Perhaps you should try some spelling variations:
dang xay » dang van, van xay
tuan loc » thuan loi, tuan le, van loc
luu tre » luu tru, cuu tre, luy tre
va danh » va dan, dia danh, va thanh
ky dang » ky nang, ky danh
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
va tuan » van tuan, va quan, va toan
va hanh » van hanh, va thanh, ban hanh
va dinh » van dinh, va kinh, va tinh
vi luu » vi lua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

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