Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc bao cac snippets" » "quoc oai cac snippets", "hoc bao cac snippets", "quoc va cac snippets", "quoc bao cao snippets", "quoc sao cac snippets", "quoc tao cac 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 bao cac 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 bao cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc bao cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc bao cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.