Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giap hoat da snippets" » "gia hoat da snippets", "lap hoat da snippets", "gian hoa da snippets", "giap hoat va snippets", "giap hoat doi snippets", "giap hoat van 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: (((("giap hoat da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giap hoat da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giap hoat da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giap hoat da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.