Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong su thue snippets" » "dang su thue snippets", "dong tu thue snippets", "dong luc thue snippets", "dong su thua snippets", "dong cuc thue snippets", "dong su thien 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: (((("dong su thue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong su thue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong su thue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong su thue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.