Perhaps you should try some spelling variations:
thanh trung » thanh tung
tuong xuong » tuong duong, tuong tuong, muong xuong
thieu manh » tien manh, trieu minh, chieu xanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trung doi » trung dai, trong doi, trung do
doi tuong » moi truong, doi song
xuong dan » huong dan, xuong san, tuong dan
dan toan » van toan, dan than, manh toan
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 manh) OR (hieu manh)) - thanh trung doi tuong xuong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu manh) OR (hieu manh)) - thanh trung doi tuong xuong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) OR (hieu manh)) - thanh trung doi tuong xuong dan toan cao*.