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