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