Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"my vuong cua snippets" » "my huong cua snippets", "my luong cua snippets", "my duong cua snippets", "h vuong cua snippets", "ky vung cua snippets", "my hong cua 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: (((("my vuong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("my vuong cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( my vuong cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("my vuong cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.