Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phuc hoc che snippets" » "phuc hoi che snippets", "phuc hoa che snippets", "phuc hon che snippets", "phuc hoc he snippets", "phuc hoc cho snippets", "phuc hoc chu 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: (((("phuc hoc che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phuc hoc che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phuc hoc che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phuc hoc che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.