Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khan nam ca snippets" » "khanh nam ca snippets", "nhan nam ca snippets", "khac nam ca snippets", "khan nam cao snippets", "khan nam cac snippets", "khan nam cua 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: (((("khan nam ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khan nam ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khan nam ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khan nam ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.