Perhaps you should try some spelling variations:
dung cong » dung trong
cong nang » cong ngang, cong lang, cong nong
ho chieu » theo chieu, hoc thieu, doi chieu
tang lan » tang luan, tang van, tang ban
tang dan » tang van, tung dan, tang luan
nang tao » nang cao, sang tao, nang tai
tao cao » bao cao, toan cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc hien)) xanh - hanh ((tang lan) or (tang dan)) dung cong nang tao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc hien)) xanh - hanh ((tang lan) OR (tang dan)) dung cong nang tao cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc hien)) xanh - hanh ((tang lan) or (tang dan)) dung cong nang tao cao*.