Perhaps you should try some spelling variations:
cau trang » chu trang, cai trang, cau thang
hieu van » hieu va, thien van, lieu va
trang va » tran van, hang va
hanh dao » lanh dao, thanh dat, thanh dam
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
va hanh » van hanh, va thanh, va danh
dao cua » dai cua, day cua, dan cua
cua tu » cua tuc, cua su, cua cu

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) or (cac ky)) lang xa hoi. hieu van cau trang va hanh dao cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (cac ky)) lang xa hoi. hieu van cau trang va hanh dao cua tu.
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (cac ky)) lang xa hoi. hieu van cau trang va hanh dao cua tu*.