Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"khu doan cau snippets" » "khu doan code snippets", "kieu doan cau snippets", "khu do cau snippets", "thi doan cau snippets", "khu toan cau snippets", "khu doan dau snippets", "khu doan cap 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: (((("khu doan 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: (((("khu doan cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( khu doan cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khu doan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.