Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong tao cho snippets" » "cong tao code snippets", "cong tac cho snippets", "cong tan cho snippets", "cong bao cho snippets", "cong tao cao snippets", "cong cao cho snippets", "cong dao cho 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 tao cho 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 tao cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong tao cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong tao cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.