Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vao cong phe snippets" » "va cong phe snippets", "cao cong phe snippets", "van cong phe snippets", "vao cong che snippets", "vao cong phu snippets", "vao cong nghe 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: (((("vao cong phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vao cong phe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vao cong phe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vao cong phe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.