Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
hanh tri » thanh tri, hanh tai, hanh trinh
thuc va » thuc vat, thuc dan, thuc day
ky dang » ky nang, ky danh
xay hoi » tay hoi, cay phoi, gay thoi
tri cau » tri cac, tri dau, trinh cau
hieu va » lieu va, hieu qua
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao

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) OR (xa hoi)). hieu va cam ((thuc va) or (hoc va)) hanh tri cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky dang ((xay hoi) OR (xa hoi)). hieu va cam ((thuc va) OR (hoc va)) hanh tri cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky dang ((xay hoi) OR (xa hoi)). hieu va cam ((thuc va) or (hoc va)) hanh tri cau treo".
• Adding a wildcard symbol may retrieve word variants: te sac ky dang ((xay hoi) OR (xa hoi)). hieu va cam ((thuc va) or (hoc va)) hanh tri cau treo*.