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