Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khanh hoc bo snippets" » "khanh hoa bo snippets", "thanh hoc bo snippets", "khanh quoc bo snippets", "khanh hoc co 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: (((("khanh hoc bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khanh hoc bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khanh hoc bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khanh hoc bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.