Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phan soc ve snippets" » "phan suc ve snippets", "phan song ve snippets", "phan quoc ve snippets", "phan hoc ve snippets", "phan soc me snippets", "phan soc va 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: (((("phan soc 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: (((("phan soc ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phan soc ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan soc ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.