Perhaps you should try some spelling variations:
thien bang » khien bang, thien ban, thien dang
bang hanh » bang thanh, ban hanh, bang hinh
thanh vi » hanh vi, thanh ve, nhanh vi
thanh va » thanh van, hanh va, thanh ha
sach ly » sach y, sach lo, sach ty
bo sach » co sach, hoc sach
hanh tu » anh tu, danh tu
nang xa » nang x, lang xa, nang ma
ly nang » ky nang, ly hang, ly vang
ca tren » cau tren, cu tren, la tren
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 ly nang xa hoi. thien bang hanh tu va ((thanh vi) or (thanh va)) ((cua te) or (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ly nang xa hoi. thien bang hanh tu va ((thanh vi) OR (thanh va)) ((cua te) OR (ca tren)).
• Adding a wildcard symbol may retrieve word variants: bo sach ly nang xa hoi. thien bang hanh tu va ((thanh vi) or (thanh va)) ((cua te) or (ca tren))*.