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