Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sang » thu hang, thu san, thu bang
vien buu » vien huu, vien phu, vien sau
vien cuu » vien huu, viec cua, vien cac
xuc ban » duc ban, cuc ban, quoc ban
va cham » va chat, va tham
sang ky » sang kyo, dang ky, tang ky
vu cham » vu kham, tu cham, qua cham
tang ha » lang ha, tang ma, trung ha
ky tang » ky nang, ky dang, kho tang

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sang ky tang ha noi. hieu ((vu cham) or (va cham)) xuc ban thanh ((vien cuu) OR (vien buu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky tang ha noi. hieu ((vu cham) OR (va cham)) xuc ban thanh ((vien cuu) OR (vien buu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sang ky tang ha noi. hieu ((vu cham) or (va cham)) xuc ban thanh ((vien cuu) OR (vien buu)) tre".
• Adding a wildcard symbol may retrieve word variants: thu sang ky tang ha noi. hieu ((vu cham) or (va cham)) xuc ban thanh ((vien cuu) OR (vien buu)) tre*.