Perhaps you should try some spelling variations:
tien cong » thien cong, trien cong, tien luong
hieu tien » hieu tieng, tieu tien, hieu hien
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
da hanh » dao hanh, da thanh, dan hanh
hanh va » hang va, hanh vi
cua tre » cua te, cuu tre, cua triet
va cua » va chua, via cua, ca cua
ty da » ty dau, ty dat, ly da

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky lang xa hoi. hieu tien cong ty da hanh va cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu tien cong ty da hanh va cua tre*.