Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"vong doi cua snippets" » "vong doi code snippets", "trong doi cua snippets", "huong doi cua snippets", "dung doi cua snippets", "vong hoi cua snippets", "vong dai cua snippets", "vong dong cua 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: (((("vong doi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vong doi cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( vong doi cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vong doi cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.