Perhaps you should try some spelling variations:
doi chieu » doc hieu, doi chi, mot chieu
dung cong » dung trong
cong binh » cong vinh, cong tinh, cong linh
binh dan » minh danh, binh dinh, binh luan
phan ap » phan lap, phan tap, han ap
ap dung » xay dung, van dung
dan dan » dang dan, ban dan, dao dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (toc thieu)) tinh - phan ap dung cong binh dan dan ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) tinh - phan ap dung cong binh dan dan ca.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) tinh - phan ap dung cong binh dan dan ca*.