Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tai can snippets" » "dung tai can snippets", "luong tai can snippets", "cong tac can snippets", "dong tai san snippets", "dong tai cac snippets", "dong tai ban 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: (((("dong tai can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong tai can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tai can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tai can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.