Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang di cua snippets" » "hang di cua snippets", "sang bi cua snippets", "sang vi cua snippets", "sang dai cua snippets", "sang doi cua snippets", "sang de cua 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: (((("sang di cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sang di cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang di cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang di cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.