Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu hoi doai snippets" » "phu hoi doi snippets", "phu hoi thoai snippets", "phu hoi dap snippets", "phuc hoi doai snippets", "phu doi doai snippets", "thu hoi doai 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: (((("phu hoi doai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu hoi doai snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu hoi doai snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu hoi doai snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.