Perhaps you should try some spelling variations:
thanh cham » thanh pham, thanh cha, hanh cham
hanh chat » hanh cat, hanh cham, thanh chau
cua viet » ca viet, hoa viet, cua vat
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
luc va » duc va, tuc va, loc va
va cam » va cham, va cao, va cai
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty nang ma hoi. hieu ((va cam) or (va cac)) luc va ((hanh chat) OR (thanh cham)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty nang ma hoi. hieu ((va cam) OR (va cac)) luc va ((hanh chat) OR (thanh cham)) cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ty nang ma hoi. hieu ((va cam) or (va cac)) luc va ((hanh chat) OR (thanh cham)) cua viet".
• Adding a wildcard symbol may retrieve word variants: vu sach ty nang ma hoi. hieu ((va cam) or (va cac)) luc va ((hanh chat) OR (thanh cham)) cua viet*.