Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang ven cau snippets" » "lang van cau snippets", "lang bien cau snippets", "lang viet cau snippets", "lang ve cau snippets", "lang vien 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: (((("lang ven cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang ven cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang ven cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang ven cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.