Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc viet ca snippets" » "duoc viet ca snippets", "hoc viet ca snippets", "toc viet ca snippets", "doc viet ha snippets", "doc viet co snippets", "doc viet a 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: (((("doc viet ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc viet ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc viet ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc viet ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.