Perhaps you should try some spelling variations:
"hoc duc long snippets" » "hoc duc code snippets", "hoc duc cong snippets", "hoc duc dong snippets", "hoc duc hong snippets", "hoc duoc long snippets", "hoc nuoc long snippets", "hoc thuc long 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 duc long 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 duc long snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoc duc long snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoc duc long snippets"))) or ("locating bug core snippets"))*.