Perhaps you should try some spelling variations:
phan lap » phan dau
trung va » truong va, trang va, trung ha
tu sach » thu sach, su sach, te sach
truc va » thuc va, thuc vat
tu cham » toc cham, thi cham
hieu tu » chieu tu, hieu tuc, hien tu
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
su tien » su kien, su hien, tu tieng
ho hoi » hoc hoi, hoa hoi, hoi hoi
lap su » lap du, lap tu, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((ty nang) OR (ty hang)) ho hoi. hieu tu cham ((truc va) or (trung va)) phan lap su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ty nang) OR (ty hang)) ho hoi. hieu tu cham ((truc va) OR (trung va)) phan lap su tien*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ty nang) OR (ty hang)) ho hoi. hieu tu cham ((truc va) or (trung va)) phan lap su tien*".