Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets"
"mang may cua snippets" » "mang day cua snippets", "mang may bua snippets", "mang may sua snippets", "nang may cua snippets", "dang may cua snippets", "bang may cua 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: (((("mang may cua snippets") or ("data using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mang may cua snippets") OR ("data using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mang may cua snippets ) or ( data using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mang may cua snippets") or ("data using java snippets"))) or ("locating bug code snippets"))*.