Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong giai ve snippets" » "duong giai ve snippets", "dong giao ve snippets", "dong giam ve snippets", "dong gian ve snippets", "dong gia ve snippets", "dong giai ke 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 giai ve 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 giai ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong giai ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong giai ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.