Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truc tuan » truc quan, truc tuyen, truc trang
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va thai » van thai, va tai, va tham
cua tre » cua te, cuu tre, cua triet
anh vi » hanh vi, anh va, anh ve
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky nang xa hoi. hieu va thai ((truc tuan) OR (trung tuan)) anh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu va thai ((truc tuan) OR (trung tuan)) anh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu va thai ((truc tuan) OR (trung tuan)) anh vi cua tre*.