Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giang vo ca snippets" » "giang o ca snippets", "giang ve ca snippets", "giang van ca snippets", "giang vo co snippets", "giang va ca snippets", "giang ho ca 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: (((("giang vo 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: (((("giang vo ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang vo ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang vo ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.