Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra danh mon snippets" » "tran danh mon snippets", "trai doanh mon snippets", "tran manh mon snippets", "tra dan mon snippets", "tra dang mon snippets", "tra danh ngon 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: (((("tra danh mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tra danh mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra danh mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra danh mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.