Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giang vo hoi snippets" » "giang o hoi snippets", "giang ve hoi snippets", "giang van hoi snippets", "giang co hoi snippets", "giang va hoi 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 vo hoi 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 vo hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang vo hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang vo hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.