Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
viec cac » vien cac, viec cua, viec lam
van hanh » van thanh, ban hanh, van anh
nang ma » tang ma, sang ma, nang cao
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » va thanh, va danh, ban hanh
hai cua » thai cua, dai cua, hoi cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((van ky) or (dan ky)) nang ma hoa. nhieu viec cac xuc ((va hanh) OR (van hanh)) hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((van ky) OR (dan ky)) nang ma hoa. nhieu viec cac xuc ((va hanh) OR (van hanh)) hai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((van ky) or (dan ky)) nang ma hoa. nhieu viec cac xuc ((va hanh) OR (van hanh)) hai cua te*".