Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
truc van » truc va, thuc van, truc ban
tang ha » lang ha, tang ma, trung ha
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, kho tang
hanh ve » hanh vi, hanh va
ha hoi » hoa hoi, ha noi, xa hoi
ve cau » ke cau, va cau, ve cac
sac ky » cac ky, sai ky
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky tang ha hoi. hieu ve cau truc van ((hanh de) or (((hanh ve) OR (hanh kem)))) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky tang ha hoi. hieu ve cau truc van ((hanh de) OR (((hanh ve) OR (hanh kem)))) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky tang ha hoi. hieu ve cau truc van ((hanh de) or (((hanh ve) OR (hanh kem)))) va triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky tang ha hoi. hieu ve cau truc van ((hanh de) or (((hanh ve) OR (hanh kem)))) va triet*.