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