Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhe cach cua snippets" » "nhe cac cua snippets", "nhan cach cua snippets", "ve cach cua snippets", "nhe cach dua snippets", "nhe canh 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: (((("nhe cach 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: (((("nhe cach cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhe cach cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhe cach cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.