Perhaps you should try some spelling variations:
khong duong » khong xuong, thong duong, khong dong
nang luong » nang song
khong dung » thong dung, phuong dung, cuong dung
tieu danh » dieu danh, tiep danh, thien danh
hanh nang » anh nang, ganh nang, hanh mang
toan tai » toan tap, doanh tai, toan ban
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: theo tieu danh - hanh nang luong ((khong duong) OR (khong dung)) manh ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - hanh nang luong ((khong duong) OR (khong dung)) manh ((toan tai) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu danh - hanh nang luong ((khong duong) OR (khong dung)) manh ((toan tai) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - hanh nang luong ((khong duong) OR (khong dung)) manh ((toan tai) or (toan cao))*.