Perhaps you should try some spelling variations:
nganh thanh » nhanh thanh, danh thanh, nhanh thang
duc nganh » luc nganh, chuc nganh, duc anh
thanh vi » hanh vi, thanh va, thanh ve
su sach » so sach, vu sach
ty hang » ly hang, thi hang, thu hang
vi cua » vai cua, di cua
cua te » cua tu
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai

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 ((ty hang) or (ty xang)) xa hoi. hieu ((ve cam) OR (ve cac)) duc nganh thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty hang) OR (ty xang)) xa hoi. hieu ((ve cam) OR (ve cac)) duc nganh thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty hang) or (ty xang)) xa hoi. hieu ((ve cam) OR (ve cac)) duc nganh thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty hang) or (ty xang)) xa hoi. hieu ((ve cam) OR (ve cac)) duc nganh thanh vi cua te*.