Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cach qua cua snippets" » "cach qua code snippets", "cac qua cua snippets", "bach qua cua snippets", "cach cua cua snippets", "cach quan cua snippets", "cach quang cua snippets", "cach qua quan 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: (((("cach qua 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: (((("cach qua cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cach qua cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach qua cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.