Perhaps you should try some spelling variations:
nang cau » nang cao, hang cau, nang dau
van tham » van thanh, van tuan, van chat
van hanh » van thanh, ban hanh, van anh
hanh lai » hanh lam, hanh tai, thanh lap
su triet » su viet, su tien, ve triet
vu sach » vu bach, vu khach
su sach » so sach
va cham » va chat, va tham
soc van » hoc van, oc van, sac van
y nang » ky nang, ly nang, v nang

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) or (su sach)) y nang cau hoi. thien ((va cham) or (van tham)) soc van hanh lai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) y nang cau hoi. thien ((va cham) OR (van tham)) soc van hanh lai su triet.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (su sach)) y nang cau hoi. thien ((va cham) or (van tham)) soc van hanh lai su triet*.