Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
hieu manh » chieu xanh, hieu nganh, dieu hanh
chong tap » chong phap, chong tham, cong tac
cuong tap » luong tap, cong tac, luong tai
anh hang » anh hoang, anh hung, anh bang
toan cau » 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 xanh) OR (hieu manh)) - anh hang va nhung ((chong tap) or (cuong tap)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - anh hang va nhung ((chong tap) OR (cuong tap)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (hieu manh)) - anh hang va nhung ((chong tap) or (cuong tap)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (hieu manh)) - anh hang va nhung ((chong tap) or (cuong tap)) toan cau*.