Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chai van cau snippets" » "chi van cau snippets", "thai van cau snippets", "hai van cau snippets", "chai van dau snippets", "chai van hau snippets", "chai van chat snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("chai van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chai van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chai van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chai van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.