Perhaps you should try some spelling variations:
thien ban » thien bang, thien van, phien ban
cau tren » cu tren, dau tren, ca tren
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
hanh tuc » hanh tu, nhanh thuc, hanh thuoc
ban hanh » ban hang
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
bo sach » co sach
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (hoc sach)) ly nang xa hoi. thien ban hanh tuc va thanh vi ((cua te) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (hoc sach)) ly nang xa hoi. thien ban hanh tuc va thanh vi ((cua te) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (hoc sach)) ly nang xa hoi. thien ban hanh tuc va thanh vi ((cua te) or (cau tren))*.