Perhaps you should try some spelling variations:
nhan tien » nhan vien, nhan dien, nhan tieu
phan tien » phan kien, phan bien, phap tieng
thu sac » thu sach, thu san, thu xac
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
cua te » cua tu
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
suc va » duc va, tuc va, soc va
va cao » va cac, va co, va dao
ma hoi » mai hoi, xa hoi, ma hoa

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 ma hoi. hieu va cao ((suc va) or (luc va)) ((nhan tien) OR (phan tien)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang ma hoi. hieu va cao ((suc va) OR (luc va)) ((nhan tien) OR (phan tien)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sac ky nang ma hoi. hieu va cao ((suc va) or (luc va)) ((nhan tien) OR (phan tien)) cua te".
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang ma hoi. hieu va cao ((suc va) or (luc va)) ((nhan tien) OR (phan tien)) cua te*.