Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khat cua cau snippets" » "khat cua code snippets", "nhat cua cau snippets", "chat cua cau snippets", "khat sua cau snippets", "khat chua cau snippets", "khat cua cac snippets", "khat 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: (((("khat 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: (((("khat cua cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khat cua cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khat cua cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.