Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao co doi snippets" » "khac co doi snippets", "khao cuu doi snippets", "khao noi doi snippets", "khao cho doi snippets", "khao co dot snippets", "khao co dai 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 co doi 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 co doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao co doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao co doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.