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