Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
trang vat » trang va, trang vai, trang mat
trong dan » trong dang, trong san, trong tan
theo chu » theo chieu, cho chu, chao chu
tang vat » tang van, dang vat, bang vat
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 chu)) xanh - hanh ((trang vat) OR (tang vat)) dung trong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - hanh ((trang vat) OR (tang vat)) dung trong dan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (theo chu)) xanh - hanh ((trang vat) OR (tang vat)) dung trong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - hanh ((trang vat) OR (tang vat)) dung trong dan toan ban*.