Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khap mo chon snippets" » "phap mo chon snippets", "khac mo chon snippets", "khai mo chon snippets", "khap mo cho snippets", "khap mo phong 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: (((("khap mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khap mo chon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khap mo chon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khap mo chon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.