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