Perhaps you should try some spelling variations:
dat duoc » dat nuoc, luat duoc, xuat duoc
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
nang ma » tang ma, sang ma, nang cao
da duoc » tao duoc, hoa duoc
hieu va » lieu va, hieu qua
vi cua » vai cua, di cua
vu sac » vu sach, vu san, vu cac
ma hoi » mai hoi, xa hoi, ma hoa
va sac » va cac, va suc, va san

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) or (va sac)) ky nang ma hoi. hieu va ((dat duoc) OR (da duoc)) va hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sac) OR (va sac)) ky nang ma hoi. hieu va ((dat duoc) OR (da duoc)) va hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sac) or (va sac)) ky nang ma hoi. hieu va ((dat duoc) OR (da duoc)) va hanh vi cua tre*".