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