Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc chi da snippets" » "hoc chi code snippets", "hoc chia da snippets", "hoc cho da snippets", "hoc chu da snippets", "hoc chi dan snippets", "hoc chi dao snippets", "hoc chi 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: (((("hoc chi da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc chi da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc chi da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chi da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.