Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc do rong snippets" » "hoc do code snippets", "hoc do trong snippets", "hoc do hong snippets", "hoc mo rong snippets", "hoc doi rong snippets", "hoc co rong snippets", "hoc bo rong 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 do rong 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 do rong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc do rong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc do rong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.