Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
canh tay » canh tac, thanh tay, anh ta
cac truc » cau truc, cac tru, cac trung
dang xay » dang van, van xay
nang xa » nang x, lang xa, nang ma
sach tu » sach thu, cach tu, sach ty
truc va » thuc va, thuc vat, trung va
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((canh tay) or (sach tu)) ((nang xa) or (dang xay)) hoi. lieu va cac truc va danh vi cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((canh tay) OR (sach tu)) ((nang xa) OR (dang xay)) hoi. lieu va cac truc va danh vi cau tren.
• Adding a wildcard symbol may retrieve word variants: su ((canh tay) or (sach tu)) ((nang xa) or (dang xay)) hoi. lieu va cac truc va danh vi cau tren*.