Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giu nhan cho snippets" » "gia nhan cho snippets", "giao nhan cho snippets", "cu nhan cho snippets", "giu han cho snippets", "giu nhan nho snippets", "giu chan cho 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: (((("giu nhan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giu nhan cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giu nhan cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giu nhan cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.