Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ngan ban cau snippets" » "ngan bang cau snippets", "ngan han cau snippets", "ngan van cau snippets", "ngan ban can 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: (((("ngan ban 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: (((("ngan ban cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ngan ban cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ngan ban cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.