Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
quang tuan » quang thanh, quan luan, quang cua
trung tuan » trung thanh, trung tam, tran tuan
hoc thien » hoc hien, hoc thieu, hoc thiet
tung tuan » hung tuan, trang tuan, trong tuan
hang cong » dang cong, hang nong, bang cong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 thien hach - thanh ((((tung tuan) OR (quang tuan))) or (trung tuan)) hang cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh ((((tung tuan) OR (quang tuan))) OR (trung tuan)) hang cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh ((((tung tuan) OR (quang tuan))) or (trung tuan)) hang cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((((tung tuan) OR (quang tuan))) or (trung tuan)) hang cong tan toan ban*.