Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao cua hoc snippets" » "khao cuu hoc snippets", "kho cua hoc snippets", "thao cua hoc snippets", "khao cua hoi snippets", "khao cua thuoc snippets", "khao cua nuoc 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: (((("khao cua hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khao cua hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao cua hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao cua hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.