Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong do cap snippets" » "cuong dao cap snippets", "cuong vo cap snippets", "luong do cap snippets", "cuong so cap snippets", "cuong do cao snippets", "cuong do cac 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: (((("cuong do 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: (((("cuong do cap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong do cap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong do cap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.