Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phi hoat he snippets" » "chi hoat he snippets", "thi hoa he snippets", "thi hoan he snippets", "phi hoa he snippets", "phi hoat ho snippets", "phi thuat he 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: (((("phi hoat he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi hoat he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phi hoat he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoat he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.