Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu ninh cu snippets" » "thuc ninh cu snippets", "thuy ninh cu snippets", "thu minh cu snippets", "thu dinh cu snippets", "thu ninh co snippets", "thu dinh cuu 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: (((("thu ninh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu ninh cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu ninh cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu ninh cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.