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