Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cham xuc » cam xuc, chat xuc, cham soc
hanh tri » thanh tri, hanh tai, hanh trinh
tu sach » te sach, tu cach, vu sach
su sach » so sach, vu sach
nang ma » tang ma, sang ma, nang cao
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
va hanh » van hanh, va thanh, va danh
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, tuc va, luc va
thiet » thieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) OR (su sach))) or (thu sach)) ky nang ma hoi. hieu vu cham xuc va hanh tri va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (su sach))) OR (thu sach)) ky nang ma hoi. hieu vu cham xuc va hanh tri va thiet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sach) OR (su sach))) or (thu sach)) ky nang ma hoi. hieu vu cham xuc va hanh tri va thiet".
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) OR (su sach))) or (thu sach)) ky nang ma hoi. hieu vu cham xuc va hanh tri va thiet*.