Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong bac lon snippets" » "dong bang lon snippets", "dong luc lon snippets", "dong hoc lon snippets", "dong bac son snippets", "dong bai lon snippets", "dong bay lon 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 bac lon 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 bac lon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong bac lon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong bac lon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.