Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
cau treo » cau theo, cau tren, cau triet
hanh vai » hanh vi, hanh va, hanh tai
vat hanh » vat thanh, van hanh, va hanh
viec cac » vien cac, viec cua, viec lam
sach thu » sach thue, sach thieu, sach tham
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, xach tay
cac hoc » cach hoc, cac hop, bac hoc
hoc vat » hoc va, hoc viet, thuc vat
vai cau » va cau, van cau, vai cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ky) or (((sach ty) OR (sach thu)))) nang xa hoi. hieu viec cac hoc vat hanh vai cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (((sach ty) OR (sach thu)))) nang xa hoi. hieu viec cac hoc vat hanh vai cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) or (((sach ty) OR (sach thu)))) nang xa hoi. hieu viec cac hoc vat hanh vai cau treo*".