Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, hoc hien, hoc dieu
trung qua » trung quan, trong qua, truong quan
trung cua » truong cua, trung tuan, trung cap
cong toan » cong tan, cong hoan, cong tuan
ho chieu » theo chieu, hoc thieu, doi chieu
toan ban » van ban
ban cao » bao cao, ban can, ban co

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (ho chieu)) xanh - hanh ((trung qua) OR (trung cua)) trong cong toan ban cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) xanh - hanh ((trung qua) OR (trung cua)) trong cong toan ban cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (ho chieu)) xanh - hanh ((trung qua) OR (trung cua)) trong cong toan ban cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) xanh - hanh ((trung qua) OR (trung cua)) trong cong toan ban cao*.