Perhaps you should try some spelling variations:
thuat lanh » thuat lap, thuat san
thien van » thi van
hang doi » hang loi, huong doi, hang tai
su triet » su viet, su tien, ve triet
van lam » van nam
lam duc » lam duoc, pham duc, nam duoc
lanh ky » hanh ky, nganh ky, thanh ky
hanh de » hanh ve, hanh kem
hang di » hang vi, hang dien, hang dich
nang o » nang co, nang ho, nang ro
o hai » co hai, so hai, o lai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat lanh ky nang o hai. thien van lam duc va ((hanh de) or (((hang di) OR (hang doi)))) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat lanh ky nang o hai. thien van lam duc va ((hanh de) OR (((hang di) OR (hang doi)))) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat lanh ky nang o hai. thien van lam duc va ((hanh de) or (((hang di) OR (hang doi)))) su triet".
• Adding a wildcard symbol may retrieve word variants: thuat lanh ky nang o hai. thien van lam duc va ((hanh de) or (((hang di) OR (hang doi)))) su triet*.