Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuoc sinh
thuat sach » thuat lanh, thuat san
cac trinh » cac tinh, lap trinh, cac thanh
trinh san » trinh han, trinh quan, trinh toan
ton giao » toan giao, hoc giao, so giao
nang su » dang su, nang du, nang tu
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( te cac trinh san - hoa giao ) or ( ((thuoc sach) OR (thuat sach)) nang su - ton giao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( te cac trinh san - hoa giao ) OR ( ((thuoc sach) OR (thuat sach)) nang su - ton giao ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( te cac trinh san - hoa giao ) or ( ((thuoc sach) OR (thuat sach)) nang su - ton giao ))*".