Perhaps you should try some spelling variations:
nhanh mang » hanh mang, nhanh quang, nhanh thang
nhanh lang » nhanh quang, nhanh thang, nhan dang
vua thong » va thong, suat thong, xuat thong
thong dam » thuong dam, thong nam, trong dam
ho chieu » theo chieu, hoc thieu, doi chieu
dam toan » dan toan, tam toan, dam thanh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (ho chieu)) tinh - ((nhanh mang) OR (nhanh lang)) vua thong thong dam toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (ho chieu)) tinh - ((nhanh mang) OR (nhanh lang)) vua thong thong dam toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo tieu) or (ho chieu)) tinh - ((nhanh mang) OR (nhanh lang)) vua thong thong dam toan ban".
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (ho chieu)) tinh - ((nhanh mang) OR (nhanh lang)) vua thong thong dam toan ban*.