Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi van chi snippets" » "doi van code snippets", "do van chi snippets", "doi va chi snippets", "doi ban chi snippets", "doi van chien snippets", "doi luan chi snippets", "doi van chat 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 van chi 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 van chi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi van chi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi van chi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.