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