Perhaps you should try some spelling variations:
thieu manh » tien manh, trieu minh, chieu xanh
dung thong » dung thuong, dung trong, dong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hanh hang » thanh hang, hang hang, hanh han
thong qua » thong quan, thong cua, thong tu
hang qua » hang quan, hang cua, hanh qua
qua dung » quang dung, su dung, qua song
toan cau » toan ban, toan tap, toan tai
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)) - hanh hang qua dung thong qua ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu manh) OR (hieu manh)) - hanh hang qua dung thong qua ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu manh) or (hieu manh)) - hanh hang qua dung thong qua ((toan cau) or (toan cao))*.