Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giang do cua snippets" » "giang dao cua snippets", "giang o cua snippets", "giang vo cua snippets", "giang doi cua snippets", "giang co cua snippets", "giang de cua 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: (((("giang do cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giang do cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang do cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang do cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.