Perhaps you should try some spelling variations:
ban hanh » ban hang
cuu tre » cua tre, cau tren, cau treo
hanh ve » hanh vi, hanh va, hanh kem
nang ma » tang ma, sang ma, nang cao
luu ban » luu bang, luu van, luu dan
hieu va » hieu qua
cau luu » cau luc
ve cuu » ve cau, ve chu, ve cua
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa

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) or (sach y)) nang ma hoi. ((hieu va) OR (lieu va)) cau luu ban hanh ve cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sach y)) nang ma hoi. ((hieu va) OR (lieu va)) cau luu ban hanh ve cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) or (sach y)) nang ma hoi. ((hieu va) OR (lieu va)) cau luu ban hanh ve cuu tre*".