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