Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua nhan cap snippets" » "ca nhan cap snippets", "cua ngan cap snippets", "cua nha cap snippets", "cua khan cap snippets", "cua than cap snippets", "cua nhan cach 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: (((("cua nhan cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua nhan cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua nhan cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua nhan cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.