Perhaps you should try some spelling variations:
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
va dinh » van dinh, va kinh, va tinh
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
can ky » van ky, ban ky, tan ky
dan ky » van ky
ca cua » co cua

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

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