Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao ha cho snippets" » "khat ha cho snippets", "khao sat cho snippets", "khac hau cho snippets", "khao han cho snippets", "khao hoa cho snippets", "khao va cho 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 ha cho 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 ha cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao ha cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao ha cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.