Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cuong le cu snippets" » "vuong le cu snippets", "cuong ve cu snippets", "duong le cu snippets", "cuong le cua snippets", "cuong le cau snippets", "cuong le co 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 le cu 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 le cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuong le cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuong le cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.