Perhaps you should try some spelling variations:
nhan viec » nhan vien, nhan viet, nha viec
thu sang » thu san, thu bang, thu dang
thu hang » thi hang, thuc hanh, thu huong
chat duc » chat xuc, chat doc, chet duoc
van nhan » van phan, van thanh, danh nhan
ky tang » ky nang, ky dang, kho tang
tang ha » lang ha, tang ma, trung ha
hieu vu » hieu va, hieu ve, hieu su
vu chat » va chat, ve chat, du chat
duc van » duc va, duc tan, duc manh

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) or (thu hang)) ky tang ha noi. hieu vu chat duc van nhan viec cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sang) OR (thu hang)) ky tang ha noi. hieu vu chat duc van nhan viec cua vat.
• Adding a wildcard symbol may retrieve word variants: ((thu sang) or (thu hang)) ky tang ha noi. hieu vu chat duc van nhan viec cua vat*.