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