Perhaps you should try some spelling variations:
"luong cuoc cau snippets" » "trong cuoc cau snippets", "luong cuoc cach snippets", "luong nuoc chau snippets", "luong cuoc chay snippets"
"data using java snippets" » "data using data snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("luong cuoc cau snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong cuoc cau snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luong cuoc cau snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong cuoc cau snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.