Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nen gian co snippets" » "nen giao co snippets", "nien giam co snippets", "yen giang co snippets", "nen gian o snippets", "nen gian cua snippets", "nen gian 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: (((("nen gian co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nen gian co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nen gian co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nen gian co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.