Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim quan cua snippets" » "kim quang cua snippets", "kieu quan cua snippets", "kim ngan cua snippets", "kim quan luan snippets", "kim ban cua snippets", "kim gian 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: (((("kim quan 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: (((("kim quan cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim quan cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim quan cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.