Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tu tong snippets" » "dong luc tong snippets", "thong tu tong snippets", "dong tai tong snippets", "dong tu tuong snippets", "dong tu trong snippets", "dong tu dong 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 tu tong 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 tu tong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tu tong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tu tong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.