Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tao viet cau snippets" » "tao viet code snippets", "dao viet cau snippets", "tho viet cau snippets", "bao viet cau snippets", "tao viet chau snippets", "tao viet ca snippets", "tao viet chu 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: (((("python using java snippets") or ("tao viet cau snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tao viet cau snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tao viet cau snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tao viet cau snippets"))) or ("locating bug core snippets"))*.