Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
cuu tre » cua tre, cau treo
ve cam » ve cham, ve cac, va cam
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 cam ((xuc van) or (duc van)) thanh phan ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. hieu ve cam ((xuc van) OR (duc van)) thanh phan ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. hieu ve cam ((xuc van) or (duc van)) thanh phan ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang x hoi. hieu ve cam ((xuc van) or (duc van)) thanh phan ((cuu tre) OR (cau tren))*.