Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc dinh cua snippets" » "luoc dinh cua snippets", "luc dich cua snippets", "luc binh cua snippets", "luc dinh cuu snippets", "luc sinh cua snippets", "luc dinh cu 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 dinh 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: (((("luc dinh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc dinh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc dinh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.