Perhaps you should try some spelling variations:
tang nguoi » thang nguoi, tang nguon, nang nguoi
hoc thieu » toc thieu
nguoi dan » nguoi dao, nguoi san, nguong dan
tranh ca » tranh cua, tranh cac, tranh cai
dan toan » van toan, dan than, manh toan
toan tap » toan ban
ca tang » cao tang, ha tang, gia tang

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) or (hoc hien)) xanh - canh tranh ca tang nguoi dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - canh tranh ca tang nguoi dan toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - canh tranh ca tang nguoi dan toan tap*.