Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
tong thong » thong thong, dong thong, cong thong
hoc thieu » toc thieu, hoc hien
thong dan » thong van, tuong dan, thong den
cua tong » cua cong, cua dong, cua nong
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, phan lap
ban cua » ban quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (theo chieu)) sach - van ban cua tong thong dan ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chieu)) sach - van ban cua tong thong dan ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chieu)) sach - van ban cua tong thong dan ((phan cau) or (phan cac))*.