Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
trinh dai » trinh tai, trinh di, trinh da
tinh dai » tinh da, tinh hai, tinh doi
dang tay » dang xay, dung tay, dan tay
viec cam » viec lam, viec cua, viec va
sach ky » sach y, sach ty, sach kem
tay hoi » tay ho, tao hoi, tay thai
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) dang tay hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (sac ky)) dang tay hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) or (sac ky)) dang tay hoi. hieu viec cam xuc va ((tinh dai) OR (trinh dai)) cua tre*.