Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat gian cac snippets" » "phat giao cac snippets", "nhat giao cac snippets", "hat giong cac snippets", "hat gian dan snippets", "hat gian 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: (((("hat gian cac 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 gian cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat gian cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat gian cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.