Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hop dan cho snippets" » "hop danh cho snippets", "hoa dan cho snippets", "hoc dan cho snippets", "hop san cho snippets", "hop dac cho 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 dan cho 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 dan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hop dan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hop dan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.