Perhaps you should try some spelling variations:
danh vai » danh sai, danh va, doanh van
dua tren » dung tren
thu sac » thu sach, thu san, thu xac
qua cua » quan cua, quang cua, qua quan
cua lao » cu lao, ca lao, cua dao
va danh » va dinh, va dan, va hanh
sac ky » cac ky, sai ky
nang o » nang co, nang ho, nang ro
lao va » tao va, cao va, bao va
cua tu » cua tuc, cua su, cua cu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang o hoi. hieu qua cua lao va danh vai ((dua tren) or (((cua te) or (cua tu))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang o hoi. hieu qua cua lao va danh vai ((dua tren) OR (((cua te) OR (cua tu)))).
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang o hoi. hieu qua cua lao va danh vai ((dua tren) or (((cua te) or (cua tu))))*.