Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
xach tay » canh tay
tuc van » thuc van, truc van, tuc va
cam tuc » cam xuc, cam tu, nam thuc
te xach » te sach
tang ma » tang van
vi cau » va cau, di cau, viet cau
ve cau » ke cau, va cau, ve cac
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: te xach tay ((tang ma) or (mang may)) hoi. lieu va cam tuc van hanh ((vi cau) or (ve cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te xach tay ((tang ma) OR (mang may)) hoi. lieu va cam tuc van hanh ((vi cau) OR (ve cau)) tren.
• Adding a wildcard symbol may retrieve word variants: te xach tay ((tang ma) or (mang may)) hoi. lieu va cam tuc van hanh ((vi cau) or (ve cau)) tren*.