Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son tinh de snippets" » "so tinh de snippets", "don tinh de snippets", "son binh de snippets", "son tinh da snippets", "son sinh de snippets", "son tinh he 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: (((("son tinh 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: (((("son tinh de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son tinh de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son tinh de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.