Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc thap cuu snippets" » "luc tham cuu snippets", "luc tai cuu snippets", "luc nhat cuu snippets", "luc cap cuu snippets", "luc thai cua snippets", "luc than 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: (((("luc thap cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc thap cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc thap cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc thap cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.