Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khao noi hoc snippets" » "khuan noi hoc snippets", "ha noi hoc snippets", "nha noi hoc snippets", "khao hoi hoc snippets", "khao voi hoc snippets", "khao noi khoa 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 noi 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 noi hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khao noi hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khao noi hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.