Perhaps you should try some spelling variations:
thi hanh » thi thanh
thi hang » thi nang, thi hong, thi thanh
danh vai » danh sai, danh va, doanh van
cau tren » cu tren, dau tren, ca tren
su sach » so sach, vu sach
ty hang » ly hang, ty xang, thu hang
hieu ve » hieu va, hieu van
va danh » va dinh, va dan, va hanh
vai cau » va cau, van cau, vai cac
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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 (((thi hang) OR (thi hanh)))) xa hoi. hieu ve cam xuc va danh vai cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ty hang) OR (((thi hang) OR (thi hanh)))) xa hoi. hieu ve cam xuc va danh vai cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty hang) or (((thi hang) OR (thi hanh)))) xa hoi. hieu ve cam xuc va danh vai cau tren".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty hang) or (((thi hang) OR (thi hanh)))) xa hoi. hieu ve cam xuc va danh vai cau tren*.