Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi can cua snippets" » "khoa can cua snippets", "khoi nang cua snippets", "hoc can cua snippets", "khoi canh cua snippets", "khoi ban cua snippets", "khoi ca 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: (((("khoi can cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi can cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi can cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi can cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.