Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi dan hop snippets" » "hoi dan hop snippets", "hoa dan hop snippets", "hoc dan hop snippets", "choi dan hoc snippets", "choi dan hoi snippets", "choi danh hoa 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: (((("choi dan hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("choi dan hop snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi dan hop snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi dan hop snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.