Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"toc nam cham snippets" » "toc nam code snippets", "toc nang cham snippets", "toc nam chi snippets", "toc nam cao snippets", "hoc nam cham snippets", "oc nam cham snippets", "goc nam cham 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: (((("toc nam cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("toc nam cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( toc nam cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("toc nam cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.