Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vung gen cau snippets" » "vung ven cau snippets", "vung bien cau snippets", "vung kem cau snippets", "vung gen cay snippets", "vung hien cau 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: (((("vung gen 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: (((("vung gen cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vung gen cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vung gen cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.