Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuc hon con snippets" » "tu hon con snippets", "tuc huong con snippets", "tuc phong con snippets", "tuc lon con snippets", "tuc hoc con snippets", "tuc hon don 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: (((("tuc hon con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuc hon con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuc hon con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuc hon con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.