Perhaps you should try some spelling variations:
cham hoi » cham voi, cham h'roi, pham hoai
thanh di » thanh doi, thanh de, thanh do
cau tren » cu tren, ca tren, cau treo
dau tren » dau tien, dat tren, dau tieng
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
hoi gia » ho gia, hoc gia, hoa gia
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ve cham hoi gia thanh di ((cau tren) OR (dau tren))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ve cham hoi gia thanh di ((cau tren) OR (dau tren))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ve cham hoi gia thanh di ((cau tren) OR (dau tren))*.