Perhaps you should try some spelling variations:
mang duoc » ngang duoc, dang duc, mang luoi
duoc hoi » quoc hoi, duoc hoc, duoc si
chat xuc » chat huu, cam xuc, chao xu
va chat » van chat, va phat, cao chat
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
ky mang » ky nang, ke mang, ky dang
hieu va » lieu va, hieu qua
di cua » dai cua, doi cua, de cua
tu dan » tuc dan, cu dan, tu can
tu ban » thu ban, te ban
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu dan) OR (tu ban)) ky mang duoc hoi. hieu va chat xuc ((va hanh) or (va danh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu dan) OR (tu ban)) ky mang duoc hoi. hieu va chat xuc ((va hanh) OR (va danh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu dan) OR (tu ban)) ky mang duoc hoi. hieu va chat xuc ((va hanh) or (va danh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu dan) OR (tu ban)) ky mang duoc hoi. hieu va chat xuc ((va hanh) or (va danh)) di cua te*.