Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
truc van » truc va, thuc van, truc ban
su triet » su viet, su tien, ve triet
ky lang » ky nang, ky dang, ky tang
van hoi » van hoa, van hoc, van hoe
hieu ke » hieu kem, chieu ke, hieu ky
hanh de » hanh ve
te sai » te tai, te bai, te lai
sai ky » sac ky
ke cau » ket cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky lang van hoi. hieu ke cau truc van ((((hanh de) or (hanh kem))) or (hanh vi)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky lang van hoi. hieu ke cau truc van ((((hanh de) OR (hanh kem))) OR (hanh vi)) su triet.
• Adding a wildcard symbol may retrieve word variants: te sai ky lang van hoi. hieu ke cau truc van ((((hanh de) or (hanh kem))) or (hanh vi)) su triet*.