Perhaps you should try some spelling variations:
hang tai » hang va, dung tai
tinh loi » tinh luoi, tinh doi, dinh loi
ky hang » ky nang, ly hang, ky dang
tai hoi » tai khoi, dai hoi, tai hai
hieu su » hieu sau, tieu su, hieu so
su cham » su pham, tu cham, vu cham
cua tre » cuu tre, cua triet, dua tren
su sac » su sach, su cac, su xac
luc va » duc va, tuc va
loc va » hoc va
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky hang tai hoi. hieu su cham ((luc va) OR (loc va)) tinh loi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky hang tai hoi. hieu su cham ((luc va) OR (loc va)) tinh loi ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky hang tai hoi. hieu su cham ((luc va) OR (loc va)) tinh loi ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sac ky hang tai hoi. hieu su cham ((luc va) OR (loc va)) tinh loi ((cua tre) or (cua te))*.