Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat dan cung snippets" » "hat dan dung snippets", "hat dan vung snippets", "hat ban cung snippets", "hat van cung snippets", "mat dan cung snippets", "nhat danh cung 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: (((("hat dan cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hat dan cung snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat dan cung snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat dan cung snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.