Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
hoc hieu » hoc hien, doc hieu, hoc dieu
hang vat » hang va, dang vat, cang vat
bang vat » bang va, dang vat, cang vat
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (hoc thieu)) cach - thanh ((hang vat) OR (bang vat)) dung cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) cach - thanh ((hang vat) OR (bang vat)) dung cong anh tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc hieu) or (hoc thieu)) cach - thanh ((hang vat) OR (bang vat)) dung cong anh tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) cach - thanh ((hang vat) OR (bang vat)) dung cong anh tuan cau*.