Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi lieu doi snippets" » "doi lieu code snippets", "duoc lieu doi snippets", "doi chieu doi snippets", "du lieu doi snippets", "doi lieu boi snippets", "doi lieu voi snippets", "doi lieu dai snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("doi lieu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi lieu doi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi lieu doi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi lieu doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.