Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"cau sach xa snippets" » "cao sach xa snippets", "hau sach xa snippets", "rau sach xa snippets", "cau sach dao snippets", "cau sach nha snippets", "cau sach bai snippets", "cau sach xa slippers"

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: (((("cau sach xa snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau sach xa snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( cau sach xa snippets ) or ( python using java snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau sach xa snippets") or ("python using java snippets"))) or ("locating bugs code snippets"))*.