Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giang dao vo snippets" » "giang day vo snippets", "gian dan vo snippets", "giang van vo snippets", "giang dao voi snippets", "giang dao o snippets", "giang dao do 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: (((("giang dao vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giang dao vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang dao vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang dao vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.