Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra quan ca snippets" » "tri quan ca snippets", "tran quang ca snippets", "toan quan ca snippets", "tra quan cua snippets", "tra quan cau snippets", "tra quan ha 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: (((("tra quan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra quan ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra quan ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra quan ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.