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