Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hao de hoan snippets" » "hao le hoang snippets", "hao duc hoan snippets", "hao ve hoang snippets", "nao de hoan snippets", "cao de hoan snippets", "hao le hoan 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: (((("hao de hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hao de hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hao de hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hao de hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.