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