Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hang ca son snippets" » "hang va son snippets", "nang cao son snippets", "hang tai son snippets", "hang cao son snippets", "hang ha son snippets", "hang ca san 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: (((("python using java snippets") or ("hang ca son snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("hang ca son snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hang ca son snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hang ca son snippets"))) or ("locating bug code snippets"))*.