Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chon tao cau snippets" » "chon tao code snippets", "che tao cau snippets", "cho dao cau snippets", "nhan tao cau snippets", "chon tao cu snippets", "chon tao cao snippets", "chon tao sau 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: (((("chon tao cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon tao cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chon tao cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon tao cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.