Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cau treo » cau theo, cau triet, cau trieu
hanh tai » thanh tai, hang tai, han tai
xay hanh » day nhanh, day thanh, xanh hanh
thuc xay » thuc day, tuc xay, thuat xay
nam thuc » nam thuoc, am thuc, nam thu
lang mai » lang dai, lang hai, lang man
nang mai » nang ma, nang tai, nang cai
hieu ha » hieu hoa, hieu va, hieu ca
sach ky » sac ky, sach y, sach ty
te sach » toc sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((nang mai) or (lang mai)) hoi. hieu ha nam thuc xay hanh tai ((cau treo) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang mai) OR (lang mai)) hoi. hieu ha nam thuc xay hanh tai ((cau treo) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang mai) or (lang mai)) hoi. hieu ha nam thuc xay hanh tai ((cau treo) or (cau tren))*.