Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"canh trac ho snippets" » "canh tac ho snippets", "anh trac ho snippets", "canh tranh ho snippets", "canh trac hoc snippets", "canh trao ho snippets", "canh trac nha 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: (((("canh trac ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("canh trac ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( canh trac ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("canh trac ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.