Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong dot moi snippets" » "cong dot code snippets", "cong mot moi snippets", "cong dong moi snippets", "cong doan moi snippets", "cong doi moi snippets", "cong do moi snippets", "cong duoc moi 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 dot moi 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 dot moi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong dot moi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong dot moi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.