Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
nganh ky » nganh y, nganh xay, hanh ky
van hanh » van thanh, ban hanh, van anh
thai cuu » thai cua, tai cuc, thi cuc
sanh ky » hanh ky, sang ky, thanh ky
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
duc van » duc va, duc tan, duc manh
cuu tre » cua tre, cau tren, cau treo

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh ky) OR (nganh ky)) nang xa hoi. thien ((van bac) or (van ban)) duc van hanh thai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ky) OR (nganh ky)) nang xa hoi. thien ((van bac) OR (van ban)) duc van hanh thai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ky) OR (nganh ky)) nang xa hoi. thien ((van bac) or (van ban)) duc van hanh thai cuu tre".
• Adding a wildcard symbol may retrieve word variants: so ((sanh ky) OR (nganh ky)) nang xa hoi. thien ((van bac) or (van ban)) duc van hanh thai cuu tre*.