Perhaps you should try some spelling variations:
thuc van » thuc vat, thuc dan, thuc hanh
ca treo » cau treo, ca tren
anh bai » sach bai, danh bat, hinh bai
thuc va » thuc vat, thuc dan, thuc day
hieu va » lieu va, hieu qua
nang ma » sang ma, nang cao, mang may
tang ma » mang may, tang van
sai ky » sac ky
va cam » va cham, va cac, va cao
tu sai » tu bai, tu san, tu cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky ((nang ma) or (tang ma)) hoi. hieu va cam ((thuc van) OR (thuc va)) anh bai ca treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky ((nang ma) OR (tang ma)) hoi. hieu va cam ((thuc van) OR (thuc va)) anh bai ca treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky ((nang ma) or (tang ma)) hoi. hieu va cam ((thuc van) OR (thuc va)) anh bai ca treo*".