Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao luat du snippets" » "khao luan du snippets", "phap luat du snippets", "khao sat du snippets", "khao luat dau snippets", "khao luat su snippets", "khao luat tu 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 luat du 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 luat du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao luat du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao luat du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.