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