Perhaps you should try some spelling variations:
thong quang » thong quan, thong qua, luong quang
phuong doan » phuong loan, phuong hoang, huong dan
trong quan » thong quan, tong quan, luong quan
hieu manh » chieu xanh, hieu nganh, dieu hanh
toc hieu » toc thieu, doc hieu, hoc thieu
toan ban » van ban
toan cao » 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: toc hieu manh - hanh ((trong quan) OR (thong quang)) bang phuong doan ((toan ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - hanh ((trong quan) OR (thong quang)) bang phuong doan ((toan ban) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu manh - hanh ((trong quan) OR (thong quang)) bang phuong doan ((toan ban) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - hanh ((trong quan) OR (thong quang)) bang phuong doan ((toan ban) or (toan cao))*.