Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong ban voi snippets" » "cong ban code snippets", "cong bang voi snippets", "cong san voi snippets", "cong tan voi snippets", "cong ban moi snippets", "cong ba voi snippets", "cong ban noi 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: (((("cong ban 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: (((("cong ban voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong ban voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong ban voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.