Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tim dan canh snippets" » "tim dan code snippets", "tim van canh snippets", "tim dan cach snippets", "tim dan hanh snippets", "tam dan canh snippets", "tim ban canh snippets", "tim man canh 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: (((("tim dan canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tim dan canh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tim dan canh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tim dan canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.