Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi doan voi snippets" » "thi doan code snippets", "thai doan voi snippets", "thi hoan voi snippets", "thi loan voi snippets", "thi doan vi snippets", "thi doan gioi snippets", "thi doan tuoi 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: (((("thi doan voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi doan voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi doan voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi doan voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.