Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"so giao cua snippets" » "so gian cua snippets", "so gia cua snippets", "so giau cua snippets", "so giai cua snippets", "hoc giao 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: (((("so giao 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: (((("so giao cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( so giao cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("so giao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.