Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hop toan do snippets" » "hop hoan do snippets", "phap toan do snippets", "tap toan do snippets", "hop toan ho snippets", "hop toan co snippets", "hop toan du 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: (((("hop toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hop toan do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hop toan do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hop toan do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.