Perhaps you should try some spelling variations:
nguyen minh » nguyen dinh, nguyen thanh
tang nguyen » trang nguyen, thang nguyen, dang nguyen
thieu tinh » chieu tinh, thien tinh, lieu tinh
long quan » luong quan, long quang, tong quan
minh toan » tinh toan, manh toan, minh tuan
long qua » long cua, song qua, luong quan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu tinh) OR (trieu tinh)) - thang ((long qua) or (long quan)) tang nguyen minh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu tinh) OR (trieu tinh)) - thang ((long qua) OR (long quan)) tang nguyen minh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu tinh) OR (trieu tinh)) - thang ((long qua) or (long quan)) tang nguyen minh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu tinh) OR (trieu tinh)) - thang ((long qua) or (long quan)) tang nguyen minh toan cao*.