Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
van hanh » van thanh, ban hanh, van anh
ky danh » ky anh, ky dang
danh xa » danh ca, dinh xa, canh xa
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
duc van » duc va, duc tan, duc manh
cua tre » cuu tre, cua triet, dua tren
su xac » pu xac
su cac » tu cac, su cao, su can
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su xac) or (su cac)) ky danh xa hoi. hieu va pham duc van hanh thai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su xac) OR (su cac)) ky danh xa hoi. hieu va pham duc van hanh thai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((su xac) or (su cac)) ky danh xa hoi. hieu va pham duc van hanh thai ((cua tre) or (cua te))*.