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