Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tro chon cac snippets" » "tro chon code snippets", "tro choi cac snippets", "mo chon cac snippets", "tap chon cac snippets", "tro cho cac snippets", "tro thong cac snippets", "tro hoc cac 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: (((("tro chon cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro chon cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tro chon cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro chon cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.