Perhaps you should try some spelling variations:
dat duoc » dat nuoc, da duoc, luat duoc
hanh doi » thanh doi, hanh noi, hang doi
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
duoc va » nuoc va, duc va, duoc ma
va hanh » van hanh, va thanh, va danh
doi cua » dai cua, hoi cua
cua tre » cua te, cuu tre, cua triet
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
ve dat » de dat, va dat, ve dao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang ((mai hoi) or (xa hoi)). hieu ve dat duoc va hanh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((mai hoi) OR (xa hoi)). hieu ve dat duoc va hanh doi cua tre*.