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

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)) vi ((luu tre) OR (cuu 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)) vi ((luu tre) OR (cuu 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)) vi ((luu tre) OR (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang xay hoi. hieu va tuan loc ((va hanh) or (va danh)) vi ((luu tre) OR (cuu tre))*.