Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hai tan cham snippets" » "hai tan code snippets", "hai tam cham snippets", "hai trang cham snippets", "hai thanh cham snippets", "hai van cham snippets", "hai quan cham snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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: (((("hai tan cham snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hai tan cham snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hai tan cham snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hai tan cham snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.