Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap hoc cho snippets" » "nha hoc cho snippets", "phap hoc cho snippets", "nhan hoc cho snippets", "nhap hoc cao snippets", "nhap hoc pho snippets", "nhap hoc co 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: (((("nhap hoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap hoc cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap hoc cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap hoc cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.