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