Perhaps you should try some spelling variations:
hoc thieu » hoc hien
thinh dan » thinh doan, trinh dan, hinh dan
luan dung » lan dung, luan dong, luan hung
dung dung » ung dung, dung ung, dung dong
dung data » dung dat, dung dan, dung danh
data phan » dam phan, sat phan, vat phan
dan luan » doanh luan, dung luan, tang luan

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) OR (toc thieu)) sang - thinh dan luan dung dung data phan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (toc thieu)) sang - thinh dan luan dung dung data phan tu".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (toc thieu)) sang - thinh dan luan dung dung data phan tu*.