Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi chap cao snippets" » "thi chap code snippets", "thi phap cao snippets", "thi cham cao snippets", "thi cap cao snippets", "thi chap lao snippets", "thi chat cao snippets", "thi chay cao 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: (((("thi chap cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi chap cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thi chap cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi chap cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.