Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha tao cac snippets" » "pha tap cac snippets", "pha tan cac snippets", "pha vao cac snippets", "pha tao bac snippets", "pha tao cao snippets", "pha tai cac 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: (((("pha tao cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha tao cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha tao cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha tao cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.