Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tuan cu snippets" » "dong thuan cu snippets", "duong tuan cu snippets", "dong xuan cu snippets", "dong tuan tu snippets", "dong quan cua snippets", "dong tuan thu 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 tuan cu 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 tuan cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tuan cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tuan cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.