Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cau theo » cau thi, cau tao
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va tinh » may tinh
tinh vi » trinh vi, tinh voi, tinh va
ve cam » ve cham, ve cac, va cam
vi cau » va cau, ve cau, di cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuoc sach) or (su sach)) ky nang xa hoi. hieu ve cam duc va tinh vi cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuoc sach) OR (su sach)) ky nang xa hoi. hieu ve cam duc va tinh vi cau theo.
• Adding a wildcard symbol may retrieve word variants: ((thuoc sach) or (su sach)) ky nang xa hoi. hieu ve cam duc va tinh vi cau theo*.