Perhaps you should try some spelling variations:
tien cua » trien cua, tiep cua, dien cua
vien cua » viec cua, dien cua, bien cua
hieu van » hieu va, thien van, lieu va
nang ma » tang ma, sang ma, nang cao
nam luc » nang luc, nhan luc, nam thuc
va tinh » may tinh
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, tuc va, loc va
tu san » thu san, tu ban, tu can
tu sac » tu sach, tu cac, tu bac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu san)) ky nang ma hoi. hieu van nam luc va tinh ((vien cua) or (tien cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky nang ma hoi. hieu van nam luc va tinh ((vien cua) OR (tien cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky nang ma hoi. hieu van nam luc va tinh ((vien cua) or (tien cua)) triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky nang ma hoi. hieu van nam luc va tinh ((vien cua) or (tien cua)) triet*.