Perhaps you should try some spelling variations:
dang xay » dang van, van xay
xay hoi » xa hoi, tay hoi, cay phoi
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
ca tren » cau tren, cu tren, la tren
sinh o » sinh co, sinh so, sinh y
o dang » xo dang, do dang, so dang
ve cau » ke cau, va cau, ve cac
va ca » va cac, va cao, va cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh o dang xay hoi. hieu ve cau truc va danh va ca tren~.
• Adding a wildcard symbol may retrieve word variants: hoc sinh o dang xay hoi. hieu ve cau truc va danh va ca tren*.