Perhaps you should try some spelling variations:
nhan tien » nhan vien, nhan dien, phan tien
tien cua » trien cua, tiep cua, dien cua
thu sac » thu sach, thu xac, thu dac
thu san » thuy san, thu ban, phu san
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
luc va » duc va, tuc va, loc va
va cao » va cac, va co, va dao
suc va » duc va, tuc va, soc va
ma hoi » mai hoi, xa hoi, ma hoa
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) OR (thu san)) ky nang ma hoi. hieu va cao ((suc va) or (luc va)) nhan tien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sac) OR (thu san)) ky nang ma hoi. hieu va cao ((suc va) OR (luc va)) nhan tien cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sac) OR (thu san)) ky nang ma hoi. hieu va cao ((suc va) or (luc va)) nhan tien cua te".
• Adding a wildcard symbol may retrieve word variants: ((thu sac) OR (thu san)) ky nang ma hoi. hieu va cao ((suc va) or (luc va)) nhan tien cua te*.