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