Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van thanh » ban thanh, van tuan
vien cac » vien bach, vien dai, vien da
thanh va » thanh van, hanh va, thanh ha
su triet » su viet, su tien, ve triet
viec va » vien va, viec cua, viec lam
y nang » ky nang, ly nang, v nang
lo van » le van, vo van, so van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach y nang x ho. hieu ((viec va) or (vien cac)) lo van thanh va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach y nang x ho. hieu ((viec va) OR (vien cac)) lo van thanh va su triet.
• Adding a wildcard symbol may retrieve word variants: thuat sach y nang x ho. hieu ((viec va) or (vien cac)) lo van thanh va su triet*.