Perhaps you should try some spelling variations:
phan vien » nhan vien, phan kien, phan bien
hieu van » hieu va, thien van, lieu va
vien cua » viec cua, dien cua, tien cua
thu sac » thu sach, thu san, thu xac
va phan » van phan, va phat, va phap
cao suc » cao duc
ky dang » ky nang, ky danh
ky lang » ky nang, ky tang, tay lang
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: thu sac ((ky lang) OR (ky dang)) xa hoi. hieu van ((cao suc) or (cao su)) va phan vien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ((ky lang) OR (ky dang)) xa hoi. hieu van ((cao suc) OR (cao su)) va phan vien cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ((ky lang) OR (ky dang)) xa hoi. hieu van ((cao suc) or (cao su)) va phan vien cua te".
• Adding a wildcard symbol may retrieve word variants: thu sac ((ky lang) OR (ky dang)) xa hoi. hieu van ((cao suc) or (cao su)) va phan vien cua te*.