Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"he tieu cac snippets" » "he thieu cac snippets", "he hieu cac snippets", "he dieu cac snippets", "theo tieu cac snippets", "thep tieu cac 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: (((("he tieu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("he tieu cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( he tieu cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("he tieu cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.