Perhaps you should try some spelling variations:
thong hoang » phuong hoang, thong thong, khung hoang
trung chua » trong chuan, trung ha, trung hoa
hien manh » hien hanh, tien manh, hien nhanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung cua » truong cua, trung tuan, trung cap
hoang van » hang va
van van » van ban, tan van, san van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien manh) or (hieu manh)) - thanh ((trung chua) OR (trung cua)) thong hoang van van dao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien manh) OR (hieu manh)) - thanh ((trung chua) OR (trung cua)) thong hoang van van dao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien manh) or (hieu manh)) - thanh ((trung chua) OR (trung cua)) thong hoang van van dao".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien manh) or (hieu manh)) - thanh ((trung chua) OR (trung cua)) thong hoang van van dao*.