Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"can trang de snippets" » "can tranh de snippets", "ban trang de snippets", "cai trang de snippets", "can trang do snippets", "can trang du snippets", "can trang ke 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: (((("can trang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can trang de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( can trang de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can trang de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.